diff --git a/app/views/courses/new.html.erb b/app/views/courses/new.html.erb
index 68a326fb2..73e86c5a0 100644
--- a/app/views/courses/new.html.erb
+++ b/app/views/courses/new.html.erb
@@ -38,7 +38,7 @@
       <li class="ml45 mb10">
         <label><span class="c_red">*</span>&nbsp;<%= l(:label_new_course_password)%>&nbsp;&nbsp;：</label>
         <input  type="password" name="course[password]" id="course_course_password" class="hwork_input02" >
-        <a id="psw_btn" class="">显示明码</a>
+        <a id="psw_btn" href="javascript:void(0)">显示明码</a>
         <div class="cl"></div>
         <span class=" ml80 c_orange">学生或其他成员申请加入课程时候需要使用该口令，该口令可以由老师在课堂上公布。</span>
       </li>