diff --git a/src/General/Index/NavLinks.html b/src/General/Index/NavLinks.html
index 90d1794fc..c458f35e0 100644
--- a/src/General/Index/NavLinks.html
+++ b/src/General/Index/NavLinks.html
@@ -6,6 +6,7 @@
 <input type="search" id="index-search" class="field" placeholder="Search">
 <a id="index-search-clear" href="javascript:;" title="Clear search">×</a>
 <span id="hidden-label" hidden> &mdash; <span id="hidden-count"></span> <span id="hidden-toggle">[<a href="javascript:;">Show</a>]</span></span>
+<input type="checkbox" id="index-rev" name="Reverse Sort" title="Check to reverse sort order">
 <select id="index-mode" name="Index Mode">
   <option disabled>Index Mode</option>
   <option value="paged">Paged</option>
diff --git a/src/css/style.css b/src/css/style.css
index cb87bae07..a76e0502b 100644
--- a/src/css/style.css
+++ b/src/css/style.css
@@ -703,7 +703,7 @@ div[data-checked="false"] > .suboption-list {
 #index-search:not([data-searching]) + #index-search-clear {
   display: none;
 }
-#index-mode, #index-sort, #index-size {
+#index-rev, #index-mode, #index-sort, #index-size {
   float: right;
 }
 .summary {