diff --git a/app/views/libraries/_form.html.erb b/app/views/libraries/_form.html.erb
index 44c2ee1c..a734d0d4 100644
--- a/app/views/libraries/_form.html.erb
+++ b/app/views/libraries/_form.html.erb
@@ -55,7 +55,7 @@
 
 <script>
   /* ------------------------------- 描述md ------------------------------*/
-  var editormd = editormd("libraries_description", {
+  editormd("libraries_description", {
     width: "100%",
     height: 210,
     syncScrolling: "single",