diff --git a/Security/Authorization/Voter/AccessVoter.php b/Security/Authorization/Voter/AccessVoter.php
index 359ded8..8ce478b 100644
--- a/Security/Authorization/Voter/AccessVoter.php
+++ b/Security/Authorization/Voter/AccessVoter.php
@@ -101,6 +101,10 @@ public function supportsClass($class)
      */
     public function vote(TokenInterface $token, $object, array $attributes)
     {
+        if (!is_object($object)) {
+            return VoterInterface::ACCESS_ABSTAIN;
+        }
+        
         $class = get_class($object);
 
         if (!$this->supportsClass($class)) {
@@ -174,4 +178,4 @@ private function isExistsObjectByConditions($object, array $conditions, $alias)
 
         return $isValid;
     }
-}
\ No newline at end of file
+}