diff --git a/packages/system/src/xypanzoom/eventhandler.ts b/packages/system/src/xypanzoom/eventhandler.ts
index 217ecd0f..583563a3 100644
--- a/packages/system/src/xypanzoom/eventhandler.ts
+++ b/packages/system/src/xypanzoom/eventhandler.ts
@@ -73,7 +73,7 @@ export function createPanOnScrollHandler({
   return (event: any) => {
     if (isWrappedWithClass(event, noWheelClassName)) {
       if (event.ctrlKey) {
-        event.preventDefault(); // stop native page zoom
+        event.preventDefault(); // stop native page zoom for pinch zooming
       }
       return false;
     }