diff --git a/onnxruntime/core/optimizer/qdq_transformer/selectors_actions/shared/utils.cc b/onnxruntime/core/optimizer/qdq_transformer/selectors_actions/shared/utils.cc
index 3da708885ab96..e2aa25897ee06 100644
--- a/onnxruntime/core/optimizer/qdq_transformer/selectors_actions/shared/utils.cc
+++ b/onnxruntime/core/optimizer/qdq_transformer/selectors_actions/shared/utils.cc
@@ -27,6 +27,9 @@ void Selectors::RegisterSelector(const OpVersionsAndSelector::OpVersionsMap& ops
 }
 
 /* static methods to return different operator's OpVersionMap */
+
+// These are operators that do not change the data and therefore the input DQ and
+// output Q have the same scale and zero_point.
 static const OpVersionsAndSelector::OpVersionsMap GetMiscOpVersionsMap() {
   return {{"Gather", {}},
           {"Reshape", {}},