--- a/testing/marionette/legacyaction.js
+++ b/testing/marionette/legacyaction.js
@@ -76,17 +76,17 @@ action.Chain.prototype.dispatchActions =
     shiftKey: false,
     ctrlKey: false,
     altKey: false,
     metaKey: false,
   };
 
   return new Promise(resolve => {
     this.actions(commandArray, touchId, 0, keyModifiers, resolve);
-  }).catch(this.resetValues);
+  }).catch(this.resetValues.bind(this));
 };
 
 /**
  * This function emit mouse event.
  *
  * @param {Document} doc
  *     Current document.
  * @param {string} type