diff --git a/modules/permission-management/src/Volo.Abp.PermissionManagement.Blazor/Components/PermissionManagementModal.razor.cs b/modules/permission-management/src/Volo.Abp.PermissionManagement.Blazor/Components/PermissionManagementModal.razor.cs
index a0b7de8c07..4048e46e6c 100644
--- a/modules/permission-management/src/Volo.Abp.PermissionManagement.Blazor/Components/PermissionManagementModal.razor.cs
+++ b/modules/permission-management/src/Volo.Abp.PermissionManagement.Blazor/Components/PermissionManagementModal.razor.cs
@@ -55,6 +55,7 @@ public partial class PermissionManagementModal
 
             _grantedPermissionCount = 0;
             _notGrantedPermissionCount = 0;
+            _permissionGroupSearchText = null;
 
             foreach (var permission in _groups.SelectMany(x => x.Permissions))
             {