diff --git a/packages/button/src/button.vue b/packages/button/src/button.vue
index ad50c72d6e..9b5b5d8660 100644
--- a/packages/button/src/button.vue
+++ b/packages/button/src/button.vue
@@ -108,7 +108,7 @@ export default defineComponent({
     })
 
     //methods
-    const handleClick = evt => {
+    const handleClick = (evt: MouseEvent) => {
       emit('click', evt)
     }