diff --git a/frontend/src/components/files-activities.js b/frontend/src/components/files-activities.js
index ab0fdca199..8843914fe4 100644
--- a/frontend/src/components/files-activities.js
+++ b/frontend/src/components/files-activities.js
@@ -143,7 +143,7 @@ class TableBody extends Component {
       return (
         <tr key={index}>
           <td className="text-center">
-            <img src={item.avatar_url} alt="" width="24" className="avatar" />
+            <img src={item.avatar_url} alt="" width="36px" height="36px" className="avatar" />
           </td>
           <td>
             <a href={userProfileURL}>{item.author_name}</a>
@@ -177,8 +177,9 @@ class FilesActivities extends Component {
   }
 
   componentDidMount() {
-    const pageNum = 1 
-    seafileAPI.listActivities(pageNum)
+    const pageNum = 1;
+    const avatarSize = 72;
+    seafileAPI.listActivities(pageNum, avatarSize)
     .then(res => {
       // not logged in
       if (res.status == 403) {