diff --git a/apps/files/js/filelist.js b/apps/files/js/filelist.js
index cc107656da..0bf1f79ab7 100644
--- a/apps/files/js/filelist.js
+++ b/apps/files/js/filelist.js
@@ -315,8 +315,8 @@ var FileList={
 	do_delete:function(files){
 		if(files.substr){
 			files=[files];
-		}	
-		for (var i in files) {
+		}
+		for (var i=0; i<files.length; i++) {
 			var deleteAction = $('tr').filterAttr('data-file',files[i]).children("td.date").children(".action.delete");
 			var oldHTML = deleteAction[0].outerHTML;
 			var newHTML = '<img class="move2trash" data-action="Delete" title="'+t('files', 'perform delete operation')+'" src="'+ OC.imagePath('core', 'loading.gif') +'"></a>';
diff --git a/apps/files_trashbin/js/trash.js b/apps/files_trashbin/js/trash.js
index 6c810e4c2b..23e5fb2fc9 100644
--- a/apps/files_trashbin/js/trash.js
+++ b/apps/files_trashbin/js/trash.js
@@ -88,7 +88,7 @@ $(document).ready(function() {
 				}
 			}
 			processSelection();
-		});		
+		});
 		
 		$('.undelete').click('click',function(event) {
 			var spinner = '<img class="move2trash" title="'+t('files_trashbin', 'perform restore operation')+'" src="'+ OC.imagePath('core', 'loader.gif') +'"></a>';
@@ -96,7 +96,7 @@ $(document).ready(function() {
 			var fileslist=files.join(';');
 			var dirlisting=getSelectedFiles('dirlisting')[0];
 			
-			for (var i in files) {
+			for (var i=0; i<files.length; i++) {
 				var undeleteAction = $('tr').filterAttr('data-file',files[i]).children("td.date");
 				undeleteAction[0].innerHTML = undeleteAction[0].innerHTML+spinner;
 			}
@@ -111,7 +111,7 @@ $(document).ready(function() {
 						if (result.status != 'success') {
 							OC.dialogs.alert(result.data.message, 'Error');
 						}
-					});		
+					});
 			});