diff --git a/seahub/templates/repo.html b/seahub/templates/repo.html
index af18e0f2f5..88edcdc4b7 100644
--- a/seahub/templates/repo.html
+++ b/seahub/templates/repo.html
@@ -1022,6 +1022,7 @@ $('#private-share-form').submit(function() {
         return false;
     }
 });
+var last_start = 0; // for 'list_dir_more'
 $(window).scroll(function() {
     var file_topbar = $('.repo-file-list-topbar'),
         list_hd = $('.repo-file-list tr:first-child');
@@ -1032,10 +1033,12 @@ $(window).scroll(function() {
     }
 
     var ele_more = $('#repo-file-list .dirent-more');
-    if (ele_more.length == 1 && $(window).scrollTop() + $(window).height() >= $(document).height() - parseInt($('#repo-file-list').css('margin-bottom'))) {
+    if (ele_more.length == 1 && $(window).scrollTop() + $(window).height() >= $(document).height() - parseInt($('#repo-file-list').css('margin-bottom')) && ele_more.data('start') != last_start) {
+        last_start = ele_more.data('start');
         $.ajax({
             url:'{% url 'list_dir_more' repo.id %}?p=' + e(cur_path) + '&start=' + e(ele_more.data('start')),
             dataType: 'json',
+            cache: false,
             success: function(data) {
                 var more_dirents = $(data['html']);
                 more_dirents.appendTo($('.repo-file-list'));
@@ -1054,7 +1057,7 @@ $(window).scroll(function() {
                 opOnDirent(more_dirents);
                 $('#name-down, #name-up, #time-up, #time-down').unbind().click(sortDirent);
                 if (data['dirent_more']) {
-                    ele_more.attr('data-start', data['more_start']); 
+                    ele_more.data('start', data['more_start']); 
                 } else {
                     ele_more.remove();
                 }
diff --git a/seahub/views/ajax.py b/seahub/views/ajax.py
index f72f02222e..237a54ae15 100644
--- a/seahub/views/ajax.py
+++ b/seahub/views/ajax.py
@@ -275,8 +275,6 @@ def list_dir_more(request, repo_id):
         'path': path,
         'dir_list': dir_list,
         'file_list': file_list,
-        'dirent_more': dirent_more,
-        'more_start': more_start,
         'ENABLE_SUB_LIBRARY': settings.ENABLE_SUB_LIBRARY,
     }   
     html = render_to_string('snippets/repo_dirents.html', ctx,