diff --git a/DigitalData.UserManager.Infrastructure/Contracts/IGroupOfUserRepository.cs b/DigitalData.UserManager.Infrastructure/Contracts/IGroupOfUserRepository.cs
index c47f06e..175d745 100644
--- a/DigitalData.UserManager.Infrastructure/Contracts/IGroupOfUserRepository.cs
+++ b/DigitalData.UserManager.Infrastructure/Contracts/IGroupOfUserRepository.cs
@@ -16,5 +16,7 @@ namespace DigitalData.UserManager.Infrastructure.Contracts
         Task<IEnumerable<GroupOfUser>> ReadAllAsyncWithGroupAndUser();
 
         Task<IEnumerable<GroupOfUser>> ReadByUsernameAsync(string username);
+
+        Task<IEnumerable<GroupOfUser>> ReadByUserIdAsync(int userId);
     }
 }
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