diff --git a/src/Block/Service/ShariffShareBlockService.php b/src/Block/Service/ShariffShareBlockService.php
index f8b940b6..8fc8d57e 100644
--- a/src/Block/Service/ShariffShareBlockService.php
+++ b/src/Block/Service/ShariffShareBlockService.php
@@ -11,6 +11,7 @@
 
 namespace Nucleos\ShariffBundle\Block\Service;
 
+use LogicException;
 use Sonata\BlockBundle\Block\BlockContextInterface;
 use Sonata\BlockBundle\Block\Service\AbstractBlockService;
 use Sonata\BlockBundle\Block\Service\EditableBlockService;
@@ -35,6 +36,10 @@ public function execute(BlockContextInterface $blockContext, ?Response $response
             'block'    => $blockContext->getBlock(),
         ];
 
+        if (!\is_string($blockContext->getTemplate())) {
+            throw new LogicException('Cannot render block without template');
+        }
+
         return $this->renderResponse($blockContext->getTemplate(), $parameters, $response);
     }
 
diff --git a/tests/Block/Service/ShariffShareBlockServiceTest.php b/tests/Block/Service/ShariffShareBlockServiceTest.php
index 0a2b2afd..0461d6c1 100755
--- a/tests/Block/Service/ShariffShareBlockServiceTest.php
+++ b/tests/Block/Service/ShariffShareBlockServiceTest.php
@@ -11,6 +11,7 @@
 
 namespace Nucleos\ShariffBundle\Tests\Block\Service;
 
+use LogicException;
 use Nucleos\ShariffBundle\Block\Service\ShariffShareBlockService;
 use Sonata\BlockBundle\Block\BlockContext;
 use Sonata\BlockBundle\Form\Mapper\FormMapper;
@@ -71,6 +72,24 @@ public function testExecute(): void
         static::assertSame('TWIG_CONTENT', $response->getContent());
     }
 
+    public function testExecuteWithNullTemplate(): void
+    {
+        $this->expectException(LogicException::class);
+        $this->expectExceptionMessage('Cannot render block without template');
+
+        $block = new Block();
+
+        $blockContext = new BlockContext($block, [
+            'template'    => null,
+        ]);
+
+        $response = new Response();
+
+        $blockService = new ShariffShareBlockService($this->twig);
+
+        static::assertSame($response, $blockService->execute($blockContext, $response));
+    }
+
     public function testGetMetadata(): void
     {
         $blockService = new ShariffShareBlockService($this->twig);