diff --git a/apps/files/js/filelist.js b/apps/files/js/filelist.js
index 66453740f5d..608920ec6d6 100644
--- a/apps/files/js/filelist.js
+++ b/apps/files/js/filelist.js
@@ -608,7 +608,7 @@ var FileList={
 				var fileSize = '<td class="filesize">'+humanFileSize(summary.totalSize)+'</td>';
 			}
 
-			var $summary = $('<tr class="summary"><td><span class="info">'+info+'</span></td>'+fileSize+'<td></td></tr>');
+			var $summary = $('<tr class="summary" data-file="undefined"><td><span class="info">'+info+'</span></td>'+fileSize+'<td></td></tr>');
 			$('#fileList').append($summary);
 
 			var $dirInfo = $summary.find('.dirinfo');