diff --git a/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Basic/Views/Shared/Components/Theme/MainNavbar/Menu/Default.cshtml b/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Basic/Views/Shared/Components/Theme/MainNavbar/Menu/Default.cshtml
index 16197ddf1f..32a62b0d49 100644
--- a/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Basic/Views/Shared/Components/Theme/MainNavbar/Menu/Default.cshtml
+++ b/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Basic/Views/Shared/Components/Theme/MainNavbar/Menu/Default.cshtml
@@ -1,11 +1,10 @@
-@using System
-@using Volo.Abp.UI.Navigation
+@using Volo.Abp.UI.Navigation
 @model ApplicationMenu
 @foreach (var menuItem in Model.Items)
 {
     if (menuItem.IsLeaf)
     {
-        if (menuItem.Url.IsNullOrEmpty())
+        if (menuItem.Url == null)
         {
             continue;
         }