diff --git a/src/AutoRest.CSharp/Mgmt/Decorator/Transformer/SubscriptionIdUpdater.cs b/src/AutoRest.CSharp/Mgmt/Decorator/Transformer/SubscriptionIdUpdater.cs
index 0bb28b9c5fb..e218eaf9e6f 100644
--- a/src/AutoRest.CSharp/Mgmt/Decorator/Transformer/SubscriptionIdUpdater.cs
+++ b/src/AutoRest.CSharp/Mgmt/Decorator/Transformer/SubscriptionIdUpdater.cs
@@ -27,8 +27,8 @@ public static void Update()
                             p.Implementation = ImplementationLocation.Method;
                             p.Schema.Type = AllSchemaTypes.String;
                         }
-                        // update the apiVersion parameter to be 'client' method
-                        if (p.Language.Default.Name.Equals("apiVersion", StringComparison.OrdinalIgnoreCase))
+                        // update the apiVersion parameter to be 'client' parameter
+                        if (p.Origin is not null && p.Origin.Equals("modelerfour:synthesized/api-version", StringComparison.OrdinalIgnoreCase))
                         {
                             p.Implementation = ImplementationLocation.Client;
                         }