diff --git a/src/Reflection/ClassReflection.php b/src/Reflection/ClassReflection.php
index 6b8fded992..3042f008bf 100644
--- a/src/Reflection/ClassReflection.php
+++ b/src/Reflection/ClassReflection.php
@@ -737,6 +737,11 @@ public function isFinal(): bool
 		return $this->isFinal;
 	}
 
+	public function isFinalByKeyword(): bool
+	{
+		return $this->reflection->isFinal();
+	}
+
 	public function getTemplateTypeMap(): TemplateTypeMap
 	{
 		if ($this->templateTypeMap !== null) {
diff --git a/src/Rules/Classes/ExistingClassInClassExtendsRule.php b/src/Rules/Classes/ExistingClassInClassExtendsRule.php
index f00c1b75d9..b23c0a5bd1 100644
--- a/src/Rules/Classes/ExistingClassInClassExtendsRule.php
+++ b/src/Rules/Classes/ExistingClassInClassExtendsRule.php
@@ -66,7 +66,7 @@ public function processNode(Node $node, Scope $scope): array
 					$currentClassName !== null ? sprintf('Class %s', $currentClassName) : 'Anonymous class',
 					$extendedClassName
 				))->nonIgnorable()->build();
-			} elseif ($reflection->isFinal()) {
+			} elseif ($reflection->isFinalByKeyword()) {
 				$messages[] = RuleErrorBuilder::message(sprintf(
 					'%s extends final class %s.',
 					$currentClassName !== null ? sprintf('Class %s', $currentClassName) : 'Anonymous class',
diff --git a/tests/PHPStan/Rules/Classes/data/extends-implements.php b/tests/PHPStan/Rules/Classes/data/extends-implements.php
index 58f3e0b800..64d23563d1 100644
--- a/tests/PHPStan/Rules/Classes/data/extends-implements.php
+++ b/tests/PHPStan/Rules/Classes/data/extends-implements.php
@@ -31,3 +31,16 @@ interface BazInterface extends FOOInterface
 {
 
 }
+
+/**
+ * @final
+ */
+class FinalWithAnnotation
+{
+
+}
+
+class ExtendsFinalWithAnnotation extends FinalWithAnnotation
+{
+
+}
diff --git a/tests/PHPStan/Rules/Methods/data/overriding-method.php b/tests/PHPStan/Rules/Methods/data/overriding-method.php
index d26ea5cfcd..961da3439b 100644
--- a/tests/PHPStan/Rules/Methods/data/overriding-method.php
+++ b/tests/PHPStan/Rules/Methods/data/overriding-method.php
@@ -283,3 +283,26 @@ public function __construct()
 	}
 
 }
+
+class FinalWithAnnotation
+{
+
+	/**
+	 * @final
+	 */
+	public function doFoo()
+	{
+
+	}
+
+}
+
+class ExtendsFinalWithAnnotation extends FinalWithAnnotation
+{
+
+	public function doFoo()
+	{
+
+	}
+
+}