diff --git a/modules/Lsw.Abp.AspnetCore.Components.Web.AntDesignTheme/Layout/AbpPageHeader.razor.cs b/modules/Lsw.Abp.AspnetCore.Components.Web.AntDesignTheme/Layout/AbpPageHeader.razor.cs
index 2dcb5d1..76a9c71 100644
--- a/modules/Lsw.Abp.AspnetCore.Components.Web.AntDesignTheme/Layout/AbpPageHeader.razor.cs
+++ b/modules/Lsw.Abp.AspnetCore.Components.Web.AntDesignTheme/Layout/AbpPageHeader.razor.cs
@@ -36,6 +36,7 @@ public partial class AbpPageHeader : ComponentBase
     public AbpPageHeader()
     {
         ToolbarItemRenders = new List<RenderFragment>();
+        BreadcrumbItems = new List<AbpBreadcrumbItem>();
     }
 
     protected override async Task OnParametersSetAsync()