diff --git a/public/src/client/category/tools.js b/public/src/client/category/tools.js
index eba385206f..385255760b 100644
--- a/public/src/client/category/tools.js
+++ b/public/src/client/category/tools.js
@@ -299,6 +299,9 @@ define('forum/category/tools', [
 						if (err) {
 							return alerts.error(err);
 						}
+						topicListEl.find('[component="category/topic"].pinned').each((index, el) => {
+							$(el).attr('data-index', baseIndex + index);
+						});
 					});
 				},
 			});