diff --git a/src/mixin/autoResize.js b/src/mixin/autoResize.js
index 2138c4e..a29f02f 100644
--- a/src/mixin/autoResize.js
+++ b/src/mixin/autoResize.js
@@ -29,7 +29,7 @@ export default {
       const { $nextTick, $refs, ref, onResize } = this
 
       return new Promise(resolve => {
-        $nextTick(e => {
+        $nextTick(_ => {
           const dom = this.dom = $refs[ref]
 
           this.width = dom ? dom.clientWidth : 0