diff --git a/runtime/bridge/receiver.js b/runtime/bridge/receiver.js
index 22b29f2bac..c24cfffce8 100644
--- a/runtime/bridge/receiver.js
+++ b/runtime/bridge/receiver.js
@@ -23,7 +23,7 @@ function fireEvent (document, nodeId, type, event, domChanges, params) {
   const el = document.getRef(nodeId)
   if (el) {
     return document.fireEvent(el, type, event, domChanges, params)
-  } else {
+  } else if (event) {
     event._nodeId = nodeId
     return document.fireEvent(document.getRef('_documentElement'), type, event, domChanges, params)
   }