diff --git a/web_src/js/features/repo-legacy.js b/web_src/js/features/repo-legacy.js
index d9aa881127..b25fc28dea 100644
--- a/web_src/js/features/repo-legacy.js
+++ b/web_src/js/features/repo-legacy.js
@@ -270,7 +270,9 @@ export function initRepoCommentForm() {
       }
 
       let icon = '';
-      if (input_id === '#project_id') {
+      if (input_id === '#milestone_id') {
+        icon = svg('octicon-milestone', 18, 'tw-mr-2');
+      } else if (input_id === '#project_id') {
         icon = svg('octicon-project', 18, 'tw-mr-2');
       } else if (input_id === '#assignee_id') {
         icon = `<img class="ui avatar image tw-mr-2" alt="avatar" src=${$(this).data('avatar')}>`;
@@ -311,6 +313,7 @@ export function initRepoCommentForm() {
 
   // Milestone, Assignee, Project
   selectItem('.select-project', '#project_id');
+  selectItem('.select-milestone', '#milestone_id');
   selectItem('.select-assignee', '#assignee_id');
 }