diff --git a/tests/Service/OutputCacheServiceTest.php b/tests/Service/OutputCacheServiceTest.php
index a454ed09..9ec026a9 100644
--- a/tests/Service/OutputCacheServiceTest.php
+++ b/tests/Service/OutputCacheServiceTest.php
@@ -161,6 +161,7 @@ public function testIgnoreCacheWhenRequestParameterIsPassed()
         $cacheItem = $this->sut->load($this->request);
 
         // Assert
+        $this->assertEquals(true, \Pimcore::inDebugMode());
         $this->assertEquals(null, $cacheItem);
     }
 }