diff --git a/src/content/gitlab.js b/src/content/gitlab.js
index 9a7f62afd..36d23d4b6 100644
--- a/src/content/gitlab.js
+++ b/src/content/gitlab.js
@@ -1,5 +1,6 @@
 'use strict';
 
+// Render on issue page
 togglbutton.render(
   '.issue-details .detail-page-description:not(.toggl)',
   { observe: true },
@@ -10,10 +11,11 @@ togglbutton.render(
     const description = [prefix, getTitle(elem)].filter(Boolean).join(' ');
 
     insertButton($('.detail-page-header-actions'), description, true);
-    insertButton($('.time_tracker'), description);
+    insertButton($('.time-tracker'), description);
   }
 );
 
+// Render on merge request page
 togglbutton.render(
   '.merge-request > .detail-page-header:not(.toggl)',
   { observe: true },
@@ -24,7 +26,7 @@ togglbutton.render(
     const description = [prefix, getTitle(elem)].filter(Boolean).join(' ');
 
     insertButton($('.detail-page-header-actions'), description, true);
-    insertButton($('.time_tracker'), description);
+    insertButton($('.time-tracker'), description);
   }
 );