diff --git a/app/assets/javascripts/related_tag.js b/app/assets/javascripts/related_tag.js
index 69e68ad60..931dfd017 100644
--- a/app/assets/javascripts/related_tag.js
+++ b/app/assets/javascripts/related_tag.js
@@ -105,8 +105,14 @@
     var $dest = $("#related-tags");
     $dest.empty();
 
-    $dest.append(this.build_html("recent", this.other_tags(Danbooru.Cookie.get("recent_tags_with_categories"))));
-    $dest.append(this.build_html("frequent", this.other_tags(Danbooru.Cookie.get("favorite_tags_with_categories"))));
+    var recent_tags = Danbooru.Cookie.get("recent_tags_with_categories");
+    var favorite_tags = Danbooru.Cookie.get("favorite_tags_with_categories");
+    if (recent_tags.length) {
+      $dest.append(this.build_html("recent", this.other_tags(recent_tags)));
+    }
+    if (favorite_tags.length) {
+      $dest.append(this.build_html("frequent", this.other_tags(favorite_tags)));
+    }
     $dest.append(this.build_html(query, related_tags));
     if (wiki_page_tags.length) {
       $dest.append(Danbooru.RelatedTag.build_html("wiki:" + query, wiki_page_tags));