diff --git a/modules/identity/test/Volo.Abp.Identity.TestBase/Volo/Abp/Identity/AbpIdentityTestBase.cs b/modules/identity/test/Volo.Abp.Identity.TestBase/Volo/Abp/Identity/AbpIdentityTestBase.cs
index b603612525..ac75b16b02 100644
--- a/modules/identity/test/Volo.Abp.Identity.TestBase/Volo/Abp/Identity/AbpIdentityTestBase.cs
+++ b/modules/identity/test/Volo.Abp.Identity.TestBase/Volo/Abp/Identity/AbpIdentityTestBase.cs
@@ -1,4 +1,5 @@
 using Volo.Abp.Modularity;
+using Volo.Abp.Testing;
 
 namespace Volo.Abp.Identity
 {