diff --git a/admin/themes/default/js/batchManagerGlobal.js b/admin/themes/default/js/batchManagerGlobal.js
index 88e8405fa..85d68158b 100644
--- a/admin/themes/default/js/batchManagerGlobal.js
+++ b/admin/themes/default/js/batchManagerGlobal.js
@@ -224,11 +224,21 @@ jQuery('#applyAction').click(function(e) {
     return true;
   }
 
+  /* TODO "delete" and "metadata" algorithms are highly similar, they should be merged */
+
   if (jQuery('[name="selectAction"]').val() == 'metadata') {
     e.stopPropagation();
     jQuery('.bulkAction').hide();
     jQuery('#regenerationText').html(lang.syncProgressMessage);
 
+    var maxRequests=1;
+
+    var queuedManager = jQuery.manageAjax.create('queued', {
+      queue: true,
+      cacheResponse: false,
+      maxRequests: maxRequests
+    });
+
     elements = Array();
 
     if (jQuery('input[name=setSelected]').is(':checked')) {
@@ -265,7 +275,7 @@ jQuery('#applyAction').click(function(e) {
 
       (function(ids) {
         var thisBatchSize = ids.length;
-        jQuery.ajax({
+        queuedManager.add({
           url: "ws.php?format=json&method=pwg.images.syncMetadata",
           type:"POST",
           dataType: "json",
@@ -291,6 +301,8 @@ jQuery('#applyAction').click(function(e) {
 
       image_ids = Array();
     }
+
+    return false;
   }
 
   if (jQuery('[name="selectAction"]').val() == 'delete') {