diff --git a/app/views/challenges/_skill_form.html.erb b/app/views/challenges/_skill_form.html.erb
index a9409b9df..682901801 100644
--- a/app/views/challenges/_skill_form.html.erb
+++ b/app/views/challenges/_skill_form.html.erb
@@ -65,8 +65,10 @@
             var nSkill = $(".knowledge_frame");
             add_tag();
             if (nSkill.length > 0){
-                if(nSkill.length!==SnSkill)      //当增加或者保存技能标签以后执行保存操作
-               $("#challenge_skill_update").submit();
+                if(nSkill.length!==SnSkill) {
+                    $("#challenge_skill_update").submit();     //当增加或者保存技能标签以后执行保存操作
+                }
+
             }else{
                 $("#stage_name_notice").show();
             }