diff --git a/src/exchange/ExchangeItem.js b/src/exchange/ExchangeItem.js
index 8b68e52f..b491557c 100644
--- a/src/exchange/ExchangeItem.js
+++ b/src/exchange/ExchangeItem.js
@@ -65,7 +65,7 @@ class ExchangeItem extends Component {
   // 取消置顶+置顶
   topEvent = (sticky,id) =>{
     const { refresh } = this.props;
-    const url =`/memos/${id}/set_top_or_down`;
+    const url =`/memos/${id}/set_top_or_down.json`;
 
     axios.get(url,{params:{
       sticky:sticky ? 0 : 1