diff --git a/backend/internal/service/admin_service_group_test.go b/backend/internal/service/admin_service_group_test.go
index 53cd4de6..364022bd 100644
--- a/backend/internal/service/admin_service_group_test.go
+++ b/backend/internal/service/admin_service_group_test.go
@@ -349,7 +349,7 @@ func TestAdminService_UpdateGroup_ClearsMessagesDispatchFieldsWhenPlatformChange
 	svc := &adminServiceImpl{groupRepo: repo}
 
 	group, err := svc.UpdateGroup(context.Background(), 1, &UpdateGroupInput{
-		Platform: ptrString(PlatformAnthropic),
+		Platform: PlatformAnthropic,
 	})
 	require.NoError(t, err)
 	require.NotNil(t, group)