diff --git a/lib/cache/file.php b/lib/cache/file.php
index a4f83f76c9437d83f3f0f416259f2c793ae49dca..27d8b19f36e83042a710aa4d4de4a2bf39981dbc 100644
--- a/lib/cache/file.php
+++ b/lib/cache/file.php
@@ -22,7 +22,7 @@ class OC_Cache_File{
 			$this->storage = new OC_FilesystemView('/'.OC_User::getUser().'/'.$subdir);
 			return $this->storage;
 		}else{
-			OC_Log::write('core','Can\'t get cache storage, user not logged in', OC_Log::ERROR);
+			OC_Log::write('core', 'Can\'t get cache storage, user not logged in', OC_Log::ERROR);
 			return false;
 		}
 	}