diff --git a/tests/dotnet/Common/Common.Gen.cs b/tests/dotnet/Common/Common.Gen.cs
index 73217b863..7ab6cbea8 100644
--- a/tests/dotnet/Common/Common.Gen.cs
+++ b/tests/dotnet/Common/Common.Gen.cs
@@ -22,7 +22,7 @@ public override void MarshalToManaged(MarshalContext ctx, GeneratorKind kind)
 
         public override void MarshalToNative(MarshalContext ctx, GeneratorKind kind)
         {
-            ctx.Return.Write("::TypeMappedIndex1()");
+            ctx.Return.Write("::TypeMappedIndex()");
         }
     }