diff --git a/lib/filecache.php b/lib/filecache.php
index adcf97753ede2c22ed10f8c39a44be977a9f7733..07099bcccd59b986edf648d2f5af1d3fa4b389d2 100644
--- a/lib/filecache.php
+++ b/lib/filecache.php
@@ -481,7 +481,7 @@ class OC_FileCache{
 	 */
 	public static function clear($user='') {
 		if($user) {
-			$query=OC_DB::prepare('DELETE FROM `*PREFIX*fscache` WHERE user=?');
+			$query=OC_DB::prepare('DELETE FROM `*PREFIX*fscache` WHERE `user`=?');
 			$query->execute(array($user));
 		}else{
 			$query=OC_DB::prepare('DELETE FROM `*PREFIX*fscache`');