diff --git a/testing/scenarios/vmess_test.go b/testing/scenarios/vmess_test.go
index 79bff40a..7de6bb6d 100644
--- a/testing/scenarios/vmess_test.go
+++ b/testing/scenarios/vmess_test.go
@@ -1444,7 +1444,6 @@ func TestVMessGCMLengthAuthPlusNoTerminationSignal(t *testing.T) {
 						{
 							Account: serial.ToTypedMessage(&vmess.Account{
 								Id:           userID.String(),
-								AlterId:      64,
 								TestsEnabled: "AuthenticatedLength|NoTerminationSignal",
 							}),
 						},
@@ -1492,8 +1491,7 @@ func TestVMessGCMLengthAuthPlusNoTerminationSignal(t *testing.T) {
 							User: []*protocol.User{
 								{
 									Account: serial.ToTypedMessage(&vmess.Account{
-										Id:      userID.String(),
-										AlterId: 64,
+										Id: userID.String(),
 										SecuritySettings: &protocol.SecurityConfig{
 											Type: protocol.SecurityType_AES128_GCM,
 										},