diff --git a/lib/minimap.js b/lib/minimap.js
index dfda058c..614fbac0 100644
--- a/lib/minimap.js
+++ b/lib/minimap.js
@@ -962,6 +962,7 @@ class Minimap {
    * @access private
    */
   onMouseWheel (event) {
+    event.stopPropagation();
     if (!this.canScroll()) { return }
 
     const {wheelDeltaY} = event