diff --git a/frontend/src/components/TreeNode.vue b/frontend/src/components/TreeNode.vue
index 8efce527..0ac2dd6b 100644
--- a/frontend/src/components/TreeNode.vue
+++ b/frontend/src/components/TreeNode.vue
@@ -83,10 +83,6 @@ export default {
     renameFile () {
       let newPath = window.prompt(`新文件名`, this.item.path)
 
-      if (!newPath.endsWith('.md')) {
-        newPath += '.md'
-      }
-
       if (!newPath || newPath === this.item.path) {
         return
       }