diff --git a/src/platforms/mp-toutiao/runtime/wrapper/util.js b/src/platforms/mp-toutiao/runtime/wrapper/util.js
index 9f3a58a218a3de49af550a3c94ecf9770bcd9817..b25a060c10a70669ade749d5d8c1a85a2be6dbb9 100644
--- a/src/platforms/mp-toutiao/runtime/wrapper/util.js
+++ b/src/platforms/mp-toutiao/runtime/wrapper/util.js
@@ -8,8 +8,9 @@ export function isPage () {
   return this.__nodeid__ === 0 || this.__nodeId__ === 0
 }
 
-export function initRefs (vm) {
+export function initRefs (vm) {
   const mpInstance = vm.$scope
+  /* global tt */
   const minorVersion = parseInt(tt.getSystemInfoSync().SDKVersion.split('.')[1])
   if (minorVersion > 16) {
     Object.defineProperty(vm, '$refs', {
@@ -100,4 +101,4 @@ export function handleLink ({
   vm._isMounted = true
   vm.__call_hook('mounted')
   vm.__call_hook('onReady')
-}
+}