diff --git a/src/Symfony/Component/HttpKernel/Profiler/MongoDbProfilerStorage.php b/src/Symfony/Component/HttpKernel/Profiler/MongoDbProfilerStorage.php
index 382ebbfe1f..94b81c2ddb 100644
--- a/src/Symfony/Component/HttpKernel/Profiler/MongoDbProfilerStorage.php
+++ b/src/Symfony/Component/HttpKernel/Profiler/MongoDbProfilerStorage.php
@@ -104,7 +104,7 @@ class MongoDbProfilerStorage implements ProfilerStorageInterface
 
         $result = $this->getMongo()->update(array('_id' => $profile->getToken()), array_filter($record, function ($v) { return !empty($v); }), array('upsert' => true));
 
-        return isset($result['ok']) ? (boolean) $result['ok'] : true;
+        return (boolean) (isset($result['ok']) ? $result['ok'] : $result);
     }
 
     /**