diff --git a/src/windows/windows.es6 b/src/windows/windows.es6
index 07b5b265c4..06fff30993 100644
--- a/src/windows/windows.es6
+++ b/src/windows/windows.es6
@@ -347,6 +347,8 @@ export const createBlankWindow = function($html,options) {
       if (dialog.closest('.ui-dialog').css('z-index') > 3000) {
          dialog.css({ zIndex: dialog.closest('.ui-dialog').css('z-index')*1 - 3000 });
          dialog.draggable('option', 'containment', false);
+      } else {
+         dialog.css({ zIndex: dialog.closest('.ui-dialog').css('z-index')*1 + 1 });
       }
    });