diff --git a/src/engine/runtime.js b/src/engine/runtime.js
index 136082691..4f3757be9 100644
--- a/src/engine/runtime.js
+++ b/src/engine/runtime.js
@@ -297,6 +297,9 @@ Runtime.prototype.stopAll = function () {
         this._removeThread(threadsCopy.pop());
     }
     // @todo call stop function in all extensions/packages/WeDo stub
+    if (window.native) {
+        window.native.motorStop();
+    }
 };
 
 /**