diff --git a/src/Authoring/WinRT.SourceGenerator/WinRTTypeWriter.cs b/src/Authoring/WinRT.SourceGenerator/WinRTTypeWriter.cs
index 81b69d76e..65cad7823 100644
--- a/src/Authoring/WinRT.SourceGenerator/WinRTTypeWriter.cs
+++ b/src/Authoring/WinRT.SourceGenerator/WinRTTypeWriter.cs
@@ -1294,7 +1294,7 @@ private void EncodeTypedConstant(TypedConstant constant, LiteralEncoder encoder)
 
                     break;
                 case TypedConstantKind.Type:
-                    encoder.Scalar().SystemType(constant.Type.ToString());
+                    encoder.Scalar().SystemType(constant.Value.ToString());
                     break;
                 case TypedConstantKind.Array:
                     {