diff --git a/pxr/usdImaging/usdImaging/dataSourceAttributeTypeName.h b/pxr/usdImaging/usdImaging/dataSourceAttributeTypeName.h
index 2a8994f21f..25303b80c3 100644
--- a/pxr/usdImaging/usdImaging/dataSourceAttributeTypeName.h
+++ b/pxr/usdImaging/usdImaging/dataSourceAttributeTypeName.h
@@ -37,6 +37,8 @@ class UsdImagingDataSourceAttributeTypeName : public HdTokenDataSource
     TfToken GetTypedValue(HdSampledDataSource::Time shutterOffset) override
     {
         TF_UNUSED(shutterOffset);
+        // We are using the GetAsToken() here since we do not expect an alias 
+        // other than the "official" type name.
         return _usdAttr.GetTypeName().GetAsToken();
     }