diff --git a/lib/filecache/update.php b/lib/filecache/update.php
index 93b632acb4..0b5ff8e244 100644
--- a/lib/filecache/update.php
+++ b/lib/filecache/update.php
@@ -152,8 +152,8 @@ class OC_FileCache_Update{
 		$size=0;
 		$cached=OC_FileCache_Cached::get($path,$root);
 		$cachedSize=isset($cached['size'])?$cached['size']:0;
-		
-		if($mimetype=='httpd/unix-directory'){
+
+		if($view->is_dir($path.'/')){
 			if(OC_FileCache::inCache($path,$root)){
 				$cachedContent=OC_FileCache_Cached::getFolderContent($path,$root);
 				foreach($cachedContent as $file){