diff --git a/src/uploader/index.js b/src/uploader/index.js
index ffb315e9a..090d5acac 100644
--- a/src/uploader/index.js
+++ b/src/uploader/index.js
@@ -405,7 +405,7 @@ export default createComponent({
 
       if (slot) {
         return (
-          <div class={bem('input-wrapper')}>
+          <div class={bem('input-wrapper')} key="input-wrapper">
             {slot}
             {Input}
           </div>