diff --git a/src/Autocomplete/src/Doctrine/EntitySearchUtil.php b/src/Autocomplete/src/Doctrine/EntitySearchUtil.php
index d7e09d12745..3db23893b51 100644
--- a/src/Autocomplete/src/Doctrine/EntitySearchUtil.php
+++ b/src/Autocomplete/src/Doctrine/EntitySearchUtil.php
@@ -47,6 +47,7 @@ public function addSearchClause(QueryBuilder $queryBuilder, string $query, strin
         ];
 
         $entitiesAlreadyJoined = [];
+        $aliasAlreadyUsed = [];
         $searchableProperties = empty($searchableProperties) ? $entityMetadata->getAllPropertyNames() : $searchableProperties;
         $expressions = [];
         foreach ($searchableProperties as $propertyName) {
@@ -68,10 +69,18 @@ public function addSearchClause(QueryBuilder $queryBuilder, string $query, strin
                     $associatedEntityAlias = SearchEscaper::escapeDqlAlias($associatedEntityName);
                     $associatedPropertyName = $associatedProperties[$i + 1];
 
-                    if (!\in_array($associatedEntityName, $entitiesAlreadyJoined, true)) {
+                    $associatedParentName = null;
+                    if (\array_key_exists($i - 1, $associatedProperties) && $queryBuilder->getRootAliases()[0] !== $associatedProperties[$i - 1]) {
+                        $associatedParentName = $associatedProperties[$i - 1];
+                    }
+
+                    $associatedEntityAlias = $associatedParentName ? $associatedParentName.'_'.$associatedEntityAlias : $associatedEntityAlias;
+
+                    if (!\in_array($associatedEntityName, $entitiesAlreadyJoined, true) || !\in_array($associatedEntityAlias, $aliasAlreadyUsed, true)) {
                         $parentEntityName = 0 === $i ? $queryBuilder->getRootAliases()[0] : $associatedProperties[$i - 1];
                         $queryBuilder->leftJoin($parentEntityName.'.'.$associatedEntityName, $associatedEntityAlias);
                         $entitiesAlreadyJoined[] = $associatedEntityName;
+                        $aliasAlreadyUsed[] = $associatedEntityAlias;
                     }
 
                     if ($i < $numAssociatedProperties - 2) {
diff --git a/src/Autocomplete/tests/Fixtures/Entity/Category.php b/src/Autocomplete/tests/Fixtures/Entity/Category.php
index b6ea24841bd..1372bf8921c 100644
--- a/src/Autocomplete/tests/Fixtures/Entity/Category.php
+++ b/src/Autocomplete/tests/Fixtures/Entity/Category.php
@@ -32,9 +32,13 @@ class Category
     #[ORM\OneToMany(mappedBy: 'category', targetEntity: Product::class)]
     private Collection $products;
 
+    #[ORM\ManyToMany(targetEntity: CategoryTag::class, mappedBy: 'categories')]
+    private Collection $tags;
+
     public function __construct()
     {
         $this->products = new ArrayCollection();
+        $this->tags = new ArrayCollection();
     }
 
     public function getId(): ?int
@@ -96,6 +100,31 @@ public function removeProduct(Product $product): self
         return $this;
     }
 
+    /**
+     * @return Collection<int, CategoryTag>
+     */
+    public function getTags(): Collection
+    {
+        return $this->tags;
+    }
+
+    public function addTag(CategoryTag $tag): self
+    {
+        if (!$this->tags->contains($tag)) {
+            $this->tags[] = $tag;
+            $tag->addCategory($this);
+        }
+
+        return $this;
+    }
+
+    public function removeTag(CategoryTag $tag): self
+    {
+        $this->tags->removeElement($tag);
+
+        return $this;
+    }
+
     public function __toString(): string
     {
         return $this->getName();
diff --git a/src/Autocomplete/tests/Fixtures/Entity/CategoryTag.php b/src/Autocomplete/tests/Fixtures/Entity/CategoryTag.php
new file mode 100644
index 00000000000..f0d46ac9ccb
--- /dev/null
+++ b/src/Autocomplete/tests/Fixtures/Entity/CategoryTag.php
@@ -0,0 +1,78 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\UX\Autocomplete\Tests\Fixtures\Entity;
+
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
+use Doctrine\ORM\Mapping as ORM;
+
+#[ORM\Entity()]
+class CategoryTag
+{
+    #[ORM\Id]
+    #[ORM\GeneratedValue]
+    #[ORM\Column()]
+    private ?int $id = null;
+
+    #[ORM\Column()]
+    private ?string $name = null;
+
+    #[ORM\ManyToMany(targetEntity: Category::class, inversedBy: 'tags')]
+    #[ORM\JoinTable(name: 'category_tag')]
+    private Collection $categories;
+
+    public function __construct()
+    {
+        $this->categories = new ArrayCollection();
+    }
+
+    public function getId(): ?int
+    {
+        return $this->id;
+    }
+
+    public function getName(): ?string
+    {
+        return $this->name;
+    }
+
+    public function setName(string $name): self
+    {
+        $this->name = $name;
+
+        return $this;
+    }
+
+    /**
+     * @return Collection<int, Category>
+     */
+    public function getCategories(): Collection
+    {
+        return $this->categories;
+    }
+
+    public function addCategory(Category $category): self
+    {
+        if (!$this->categories->contains($category)) {
+            $this->categories[] = $category;
+        }
+
+        return $this;
+    }
+
+    public function removeCategory(Category $category): self
+    {
+        $this->categories->removeElement($category);
+
+        return $this;
+    }
+}
diff --git a/src/Autocomplete/tests/Fixtures/Entity/Product.php b/src/Autocomplete/tests/Fixtures/Entity/Product.php
index 7db8056e258..4188c91a556 100644
--- a/src/Autocomplete/tests/Fixtures/Entity/Product.php
+++ b/src/Autocomplete/tests/Fixtures/Entity/Product.php
@@ -40,12 +40,16 @@ class Product
     #[ORM\JoinColumn(nullable: false)]
     private ?Category $category = null;
 
-    #[Orm\OneToMany(targetEntity: Ingredient::class, mappedBy: 'product')]
+    #[ORM\OneToMany(targetEntity: Ingredient::class, mappedBy: 'product')]
     private Collection $ingredients;
 
+    #[ORM\ManyToMany(targetEntity: ProductTag::class, mappedBy: 'products')]
+    private Collection $tags;
+
     public function __construct()
     {
         $this->ingredients = new ArrayCollection();
+        $this->tags = new ArrayCollection();
     }
 
     public function getId(): ?int
@@ -142,4 +146,31 @@ public function removeIngredient(Ingredient $ingredient): self
 
         return $this;
     }
+
+    /**
+     * @return Collection<int, ProductTag>
+     */
+    public function getTags(): Collection
+    {
+        return $this->tags;
+    }
+
+    public function addTag(ProductTag $tag): self
+    {
+        if (!$this->tags->contains($tag)) {
+            $this->tags[] = $tag;
+            $tag->addProduct($this);
+        }
+
+        return $this;
+    }
+
+    public function removeTag(ProductTag $tag): self
+    {
+        if ($this->tags->removeElement($tag)) {
+            $tag->removeProduct($this);
+        }
+
+        return $this;
+    }
 }
diff --git a/src/Autocomplete/tests/Fixtures/Entity/ProductTag.php b/src/Autocomplete/tests/Fixtures/Entity/ProductTag.php
new file mode 100644
index 00000000000..25670557626
--- /dev/null
+++ b/src/Autocomplete/tests/Fixtures/Entity/ProductTag.php
@@ -0,0 +1,78 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\UX\Autocomplete\Tests\Fixtures\Entity;
+
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
+use Doctrine\ORM\Mapping as ORM;
+
+#[ORM\Entity()]
+class ProductTag
+{
+    #[ORM\Id]
+    #[ORM\GeneratedValue]
+    #[ORM\Column()]
+    private ?int $id = null;
+
+    #[ORM\Column()]
+    private ?string $name = null;
+
+    #[ORM\ManyToMany(targetEntity: Product::class, inversedBy: 'tags')]
+    #[ORM\JoinTable(name: 'product_tag')]
+    private Collection $products;
+
+    public function __construct()
+    {
+        $this->products = new ArrayCollection();
+    }
+
+    public function getId(): ?int
+    {
+        return $this->id;
+    }
+
+    public function getName(): ?string
+    {
+        return $this->name;
+    }
+
+    public function setName(string $name): self
+    {
+        $this->name = $name;
+
+        return $this;
+    }
+
+    /**
+     * @return Collection<int, Product>
+     */
+    public function getProducts(): Collection
+    {
+        return $this->products;
+    }
+
+    public function addProduct(Product $product): self
+    {
+        if (!$this->products->contains($product)) {
+            $this->products[] = $product;
+        }
+
+        return $this;
+    }
+
+    public function removeProduct(Product $product): self
+    {
+        $this->products->removeElement($product);
+
+        return $this;
+    }
+}
diff --git a/src/Autocomplete/tests/Fixtures/Factory/CategoryTagFactory.php b/src/Autocomplete/tests/Fixtures/Factory/CategoryTagFactory.php
new file mode 100644
index 00000000000..32eec81c1a2
--- /dev/null
+++ b/src/Autocomplete/tests/Fixtures/Factory/CategoryTagFactory.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\UX\Autocomplete\Tests\Fixtures\Factory;
+
+use Doctrine\ORM\EntityRepository;
+use Symfony\UX\Autocomplete\Tests\Fixtures\Entity\CategoryTag;
+use Zenstruck\Foundry\ModelFactory;
+use Zenstruck\Foundry\Proxy;
+use Zenstruck\Foundry\RepositoryProxy;
+
+/**
+ * @extends ModelFactory<CategoryTag>
+ *
+ * @method static CategoryTag|Proxy                createOne(array $attributes = [])
+ * @method static CategoryTag[]|Proxy[]            createMany(int $number, array|callable $attributes = [])
+ * @method static CategoryTag|Proxy                find(object|array|mixed $criteria)
+ * @method static CategoryTag|Proxy                findOrCreate(array $attributes)
+ * @method static CategoryTag|Proxy                first(string $sortedField = 'id')
+ * @method static CategoryTag|Proxy                last(string $sortedField = 'id')
+ * @method static CategoryTag|Proxy                random(array $attributes = [])
+ * @method static CategoryTag|Proxy                randomOrCreate(array $attributes = [])
+ * @method static CategoryTag[]|Proxy[]            all()
+ * @method static CategoryTag[]|Proxy[]            findBy(array $attributes)
+ * @method static CategoryTag[]|Proxy[]            randomSet(int $number, array $attributes = [])
+ * @method static CategoryTag[]|Proxy[]            randomRange(int $min, int $max, array $attributes = [])
+ * @method static EntityRepository|RepositoryProxy repository()
+ * @method        CategoryTag|Proxy                create(array|callable $attributes = [])
+ */
+final class CategoryTagFactory extends ModelFactory
+{
+    protected function getDefaults(): array
+    {
+        return [
+            'name' => self::faker()->word(),
+        ];
+    }
+
+    protected function initialize(): self
+    {
+        return $this;
+    }
+
+    protected static function getClass(): string
+    {
+        return CategoryTag::class;
+    }
+}
diff --git a/src/Autocomplete/tests/Fixtures/Factory/ProductTagFactory.php b/src/Autocomplete/tests/Fixtures/Factory/ProductTagFactory.php
new file mode 100644
index 00000000000..868d61fca4d
--- /dev/null
+++ b/src/Autocomplete/tests/Fixtures/Factory/ProductTagFactory.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\UX\Autocomplete\Tests\Fixtures\Factory;
+
+use Doctrine\ORM\EntityRepository;
+use Symfony\UX\Autocomplete\Tests\Fixtures\Entity\ProductTag;
+use Zenstruck\Foundry\ModelFactory;
+use Zenstruck\Foundry\Proxy;
+use Zenstruck\Foundry\RepositoryProxy;
+
+/**
+ * @extends ModelFactory<ProductTag>
+ *
+ * @method static ProductTag|Proxy                createOne(array $attributes = [])
+ * @method static ProductTag[]|Proxy[]            createMany(int $number, array|callable $attributes = [])
+ * @method static ProductTag|Proxy                find(object|array|mixed $criteria)
+ * @method static ProductTag|Proxy                findOrCreate(array $attributes)
+ * @method static ProductTag|Proxy                first(string $sortedField = 'id')
+ * @method static ProductTag|Proxy                last(string $sortedField = 'id')
+ * @method static ProductTag|Proxy                random(array $attributes = [])
+ * @method static ProductTag|Proxy                randomOrCreate(array $attributes = [])
+ * @method static ProductTag[]|Proxy[]            all()
+ * @method static ProductTag[]|Proxy[]            findBy(array $attributes)
+ * @method static ProductTag[]|Proxy[]            randomSet(int $number, array $attributes = [])
+ * @method static ProductTag[]|Proxy[]            randomRange(int $min, int $max, array $attributes = [])
+ * @method static EntityRepository|RepositoryProxy repository()
+ * @method        ProductTag|Proxy                create(array|callable $attributes = [])
+ */
+final class ProductTagFactory extends ModelFactory
+{
+    protected function getDefaults(): array
+    {
+        return [
+            'name' => self::faker()->word(),
+        ];
+    }
+
+    protected function initialize(): self
+    {
+        return $this;
+    }
+
+    protected static function getClass(): string
+    {
+        return ProductTag::class;
+    }
+}
diff --git a/src/Autocomplete/tests/Fixtures/Form/ProductWithTagsAutocompleteType.php b/src/Autocomplete/tests/Fixtures/Form/ProductWithTagsAutocompleteType.php
new file mode 100644
index 00000000000..68390e0868c
--- /dev/null
+++ b/src/Autocomplete/tests/Fixtures/Form/ProductWithTagsAutocompleteType.php
@@ -0,0 +1,42 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\UX\Autocomplete\Tests\Fixtures\Form;
+
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+use Symfony\UX\Autocomplete\Form\AsEntityAutocompleteField;
+use Symfony\UX\Autocomplete\Form\BaseEntityAutocompleteType;
+use Symfony\UX\Autocomplete\Tests\Fixtures\Entity\Product;
+
+#[AsEntityAutocompleteField]
+class ProductWithTagsAutocompleteType extends AbstractType
+{
+    public function configureOptions(OptionsResolver $resolver)
+    {
+        $resolver->setDefaults([
+            'class' => Product::class,
+            'choice_label' => function (Product $product) {
+                return '<strong>'.$product->getName().'</strong>';
+            },
+            'multiple' => true,
+            'searchable_fields' => [
+                'tags.name',
+                'category.tags.name',
+            ],
+        ]);
+    }
+
+    public function getParent(): string
+    {
+        return BaseEntityAutocompleteType::class;
+    }
+}
diff --git a/src/Autocomplete/tests/Functional/FieldAutocompleterTest.php b/src/Autocomplete/tests/Functional/FieldAutocompleterTest.php
index 6e9420b1ffe..305e75c20ae 100644
--- a/src/Autocomplete/tests/Functional/FieldAutocompleterTest.php
+++ b/src/Autocomplete/tests/Functional/FieldAutocompleterTest.php
@@ -14,6 +14,9 @@
 use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
 use Symfony\Component\Security\Core\User\InMemoryUser;
 use Symfony\UX\Autocomplete\Tests\Fixtures\Factory\CategoryFactory;
+use Symfony\UX\Autocomplete\Tests\Fixtures\Factory\CategoryTagFactory;
+use Symfony\UX\Autocomplete\Tests\Fixtures\Factory\ProductFactory;
+use Symfony\UX\Autocomplete\Tests\Fixtures\Factory\ProductTagFactory;
 use Zenstruck\Browser\Test\HasBrowser;
 use Zenstruck\Foundry\Test\Factories;
 use Zenstruck\Foundry\Test\ResetDatabase;
@@ -127,4 +130,31 @@ public function testItUsesTheCustomCallbackValue(): void
             ->assertJsonMatches('results[0].text', $category->getName())
         ;
     }
+
+    public function testItSearchesByTags(): void
+    {
+        $productTag = ProductTagFactory::createOne(['name' => 'technology']);
+        $categoryTag = CategoryTagFactory::createOne(['name' => 'home appliances']);
+        $category = CategoryFactory::createOne(['name' => 'Electronics', 'tags' => [$categoryTag]]);
+        $product1 = ProductFactory::createOne(['name' => 'Smartphone', 'tags' => [$productTag], 'category' => $category]);
+        $product2 = ProductFactory::createOne(['name' => 'Laptop', 'category' => $category]);
+        ProductFactory::createOne(['name' => 'Microwave']);
+
+        $this->browser()
+            ->throwExceptions()
+            ->get('/test/autocomplete/product_with_tags_autocomplete_type?query=technology')
+            ->assertSuccessful()
+            ->assertJsonMatches('length(results)', 1)
+            ->assertJsonMatches('results[0].value', (string) $product1->getId())
+            ->assertJsonMatches('results[0].text', '<strong>Smartphone</strong>')
+        ;
+
+        $this->browser()
+            ->get('/test/autocomplete/product_with_tags_autocomplete_type?query=home appliance')
+            ->assertSuccessful()
+            ->assertJsonMatches('length(results)', 2)
+            ->assertJsonMatches('results[0].value', (string) $product1->getId())
+            ->assertJsonMatches('results[1].value', (string) $product2->getId())
+        ;
+    }
 }