diff --git a/app/views/issues/update.js.erb b/app/views/issues/update.js.erb
index 16ca863e4..1cdcd3f51 100644
--- a/app/views/issues/update.js.erb
+++ b/app/views/issues/update.js.erb
@@ -32,5 +32,7 @@ issue_desc_editor = KindEditor.create('#issue_description',
 //            "uploadJson":"/kindeditor/upload",
 //            "fileManagerJson":"/kindeditor/filemanager"});
 <%else%>
-    alert('<%=  @issue.errors.full_messages[0].to_s%>')
+    <% if @issue.errors.full_messages.length != 0 %>
+        alert('<%=  @issue.errors.full_messages[0].to_s%>')
+    <%end%>
 <%end %>