diff --git a/lib/Doctrine/ORM/AbstractQuery.php b/lib/Doctrine/ORM/AbstractQuery.php
index e1667add2..9612a0c58 100644
--- a/lib/Doctrine/ORM/AbstractQuery.php
+++ b/lib/Doctrine/ORM/AbstractQuery.php
@@ -502,7 +502,7 @@ abstract class AbstractQuery
      */
     public function setHydrationCacheProfile(QueryCacheProfile $profile = null)
     {
-        if ( ! $profile->getResultCacheDriver()) {
+        if ($profile !== null && ! $profile->getResultCacheDriver()) {
             $resultCacheDriver = $this->_em->getConfiguration()->getHydrationCacheImpl();
             $profile = $profile->setResultCacheDriver($resultCacheDriver);
         }