diff --git a/frontend/web/assets/js/model.js b/frontend/web/assets/js/model.js
index 3764704..a085ea3 100644
--- a/frontend/web/assets/js/model.js
+++ b/frontend/web/assets/js/model.js
@@ -38,7 +38,7 @@ $(function(){
         $(".model_wrap").hide();
         $(".model-bg").addClass("unchoose");
         $("#side-menu .av").each(function (i) {
-            $(this).eq(i).removeClass('boo');
+            $("#side-menu .av").eq(i).removeClass('boo');
         })
     });
 });
\ No newline at end of file