diff --git a/src/views/dialogs/about.ejs b/src/views/dialogs/about.ejs
index 1ce633e43..e01747e1e 100644
--- a/src/views/dialogs/about.ejs
+++ b/src/views/dialogs/about.ejs
@@ -33,7 +33,7 @@
 
                     <tr>
                         <th>Build revision:</th>
-                        <td><a href="" target="_blank" id="build-revision"></a></td>
+                        <td><a href="" class="external" target="_blank" id="build-revision"></a></td>
                     </tr>
 
                     <tr>