diff --git a/modules/permission-management/test/Volo.Abp.PermissionManagement.TestBase/Volo/Abp/PermissionManagement/PermissionManagementTestBase.cs b/modules/permission-management/test/Volo.Abp.PermissionManagement.TestBase/Volo/Abp/PermissionManagement/PermissionManagementTestBase.cs
index c90537d159..d64369978b 100644
--- a/modules/permission-management/test/Volo.Abp.PermissionManagement.TestBase/Volo/Abp/PermissionManagement/PermissionManagementTestBase.cs
+++ b/modules/permission-management/test/Volo.Abp.PermissionManagement.TestBase/Volo/Abp/PermissionManagement/PermissionManagementTestBase.cs
@@ -1,4 +1,5 @@
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 
 namespace Volo.Abp.PermissionManagement
 {