diff --git a/apps/files_sharing/lib/sharedmount.php b/apps/files_sharing/lib/sharedmount.php
index 79d6991264e8bf5c27d69b7f005aefc86cf720a3..8d0ecbc6789be1dff9af7723f246054f3ec68b7a 100644
--- a/apps/files_sharing/lib/sharedmount.php
+++ b/apps/files_sharing/lib/sharedmount.php
@@ -65,7 +65,7 @@ class SharedMount extends Mount implements MoveableMount {
 	private static function updateFileTarget($newPath, &$share) {
 		// if the user renames a mount point from a group share we need to create a new db entry
 		// for the unique name
-		if ($share['share_type'] === \OCP\Share::SHARE_TYPE_GROUP && $share['unique_name'] === false) {
+		if ($share['share_type'] === \OCP\Share::SHARE_TYPE_GROUP && empty($share['unique_name'])) {
 			$query = \OC_DB::prepare('INSERT INTO `*PREFIX*share` (`item_type`, `item_source`, `item_target`,'
 			.' `share_type`, `share_with`, `uid_owner`, `permissions`, `stime`, `file_source`,'
 			.' `file_target`, `token`, `parent`) VALUES (?,?,?,?,?,?,?,?,?,?,?,?)');