diff --git a/src/Symfony/Component/Security/Acl/Domain/DoctrineAclCache.php b/src/Symfony/Component/Security/Acl/Domain/DoctrineAclCache.php
index 9e14af5652c4..0c69773c4729 100644
--- a/src/Symfony/Component/Security/Acl/Domain/DoctrineAclCache.php
+++ b/src/Symfony/Component/Security/Acl/Domain/DoctrineAclCache.php
@@ -12,6 +12,7 @@
 namespace Symfony\Component\Security\Acl\Domain;
 
 use Doctrine\Common\Cache\Cache;
+use Doctrine\Common\Cache\CacheProvider;
 use Symfony\Component\Security\Acl\Model\AclCacheInterface;
 use Symfony\Component\Security\Acl\Model\AclInterface;
 use Symfony\Component\Security\Acl\Model\ObjectIdentityInterface;
@@ -55,7 +56,9 @@ public function __construct(Cache $cache, PermissionGrantingStrategyInterface $p
      */
     public function clearCache()
     {
-        $this->cache->deleteByPrefix($this->prefix);
+        if ($this->cache instanceof CacheProvider) {
+            $this->cache->deleteAll();
+        }
     }
 
     /**