diff --git a/src/Symfony/Bridge/Doctrine/Form/Type/DoctrineType.php b/src/Symfony/Bridge/Doctrine/Form/Type/DoctrineType.php
index c32a60b254..97f5facf62 100644
--- a/src/Symfony/Bridge/Doctrine/Form/Type/DoctrineType.php
+++ b/src/Symfony/Bridge/Doctrine/Form/Type/DoctrineType.php
@@ -282,3 +282,5 @@ abstract class DoctrineType extends AbstractType implements ResetInterface
         $this->choiceLoaders = [];
     }
 }
+
+interface_exists(ObjectManager::class);
diff --git a/src/Symfony/Bridge/Doctrine/Form/Type/EntityType.php b/src/Symfony/Bridge/Doctrine/Form/Type/EntityType.php
index 72fab88d44..e462d5692c 100644
--- a/src/Symfony/Bridge/Doctrine/Form/Type/EntityType.php
+++ b/src/Symfony/Bridge/Doctrine/Form/Type/EntityType.php
@@ -97,3 +97,5 @@ class EntityType extends DoctrineType
         return [$parameter->getName(), $parameter->getType(), $parameter->getValue()];
     }
 }
+
+interface_exists(ObjectManager::class);
diff --git a/src/Symfony/Bridge/Doctrine/Security/User/EntityUserProvider.php b/src/Symfony/Bridge/Doctrine/Security/User/EntityUserProvider.php
index cdcdbb8feb..69bbe66965 100644
--- a/src/Symfony/Bridge/Doctrine/Security/User/EntityUserProvider.php
+++ b/src/Symfony/Bridge/Doctrine/Security/User/EntityUserProvider.php
@@ -153,3 +153,6 @@ class EntityUserProvider implements UserProviderInterface, PasswordUpgraderInter
         return $this->getObjectManager()->getClassMetadata($this->classOrAlias);
     }
 }
+
+interface_exists(ObjectManager::class);
+interface_exists(ObjectRepository::class);