diff --git a/core/misc/ajax.js b/core/misc/ajax.js
index fefe9f3..db1b438 100644
--- a/core/misc/ajax.js
+++ b/core/misc/ajax.js
@@ -1306,7 +1306,12 @@
      *   The XMLHttpRequest status.
      */
     update_build_id: function (ajax, response, status) {
-      $('input[name="form_build_id"][value="' + response.old + '"]').val(response.new);
+      var old_build_id = $('input[name="form_build_id"][value="' + response.old + '"]');
+      if (old_build_id.length == 0) {
+        $('input[name="form_build_id"]').val(response.new);
+      } else {
+        $('input[name="form_build_id"][value="' + response.old + '"]').val(response.new);
+      }
     },
 
     /**