diff --git a/public/react/src/modules/courses/busyWork/CommonWorkAppraise.js b/public/react/src/modules/courses/busyWork/CommonWorkAppraise.js
index 258c5dd40..4e7d72a30 100644
--- a/public/react/src/modules/courses/busyWork/CommonWorkAppraise.js
+++ b/public/react/src/modules/courses/busyWork/CommonWorkAppraise.js
@@ -254,7 +254,7 @@ class CommonWorkAppraise extends Component{
                       <i className="font-14 color-green iconfont icon-fujian mr8" aria-hidden="true"></i>
                     </a>
                     <a href={item.url}
-                        className="mr12 color9B9B" length="58">
+                        className="mr12 color9B9B imageTarget" length="58">
                       {item.title}
                     </a>
                     <span className="color656565 mt2 color-grey-6 font-12 mr8">{item.filesize}</span>