diff --git a/public/react/src/modules/courses/Resource/Fileslistitem.js b/public/react/src/modules/courses/Resource/Fileslistitem.js
index 27f7414c6..fd886d395 100644
--- a/public/react/src/modules/courses/Resource/Fileslistitem.js
+++ b/public/react/src/modules/courses/Resource/Fileslistitem.js
@@ -329,7 +329,7 @@ class Fileslistitem extends Component{
                            { discussMessage.publish_time===null?"":discussMessage.is_publish===true?moment(discussMessage.publish_time).fromNow():moment(discussMessage.publish_time).format('YYYY-MM-DD HH:mm')}
                         </span>
                       </span>
-											{discussMessage&&discussMessage.category_name===null?"":this.props.child===false?<div className=" color-grey9 task-hide fr" title={discussMessage&&discussMessage.category_name}
+											{discussMessage&&discussMessage.category_name===null?"":this.props.child===false?<div className="color-grey9 task-hide fr mr50" title={discussMessage&&discussMessage.category_name}
 													 style={{"max-width":"268px"}}>所属目录：{discussMessage&&discussMessage.category_name}
 											</div>:""}
 										</p>