diff --git a/lib/private/helper.php b/lib/private/helper.php
index 4ad792dfb13c6f27b64821bc81587162efa1f09c..e9ca036a32cc79550cdc22823a98fed9f0d61d4f 100644
--- a/lib/private/helper.php
+++ b/lib/private/helper.php
@@ -407,7 +407,7 @@ class OC_Helper {
 		if (is_dir($dir)) {
 			$files = scandir($dir);
 			foreach ($files as $file) {
-				if ($file != "." && $file != "..") {
+				if ($file !== '' && $file !== "." && $file !== "..") {
 					self::rmdirr("$dir/$file");
 				}
 			}