diff --git a/layouts/partials/menu-filetree.html b/layouts/partials/menu-filetree.html
index 5214b07..82d89a2 100644
--- a/layouts/partials/menu-filetree.html
+++ b/layouts/partials/menu-filetree.html
@@ -62,7 +62,7 @@
             {{ end }}
             {{ if $doCollapse }}
                 <svg class="icon gdoc_keyborad_arrow_left"><use xlink:href="#gdoc_keyborad_arrow_left"></use></svg>
-                <svg class="icon gdoc_keyborad_arrow_down hidden"><use xlink:href="#gdoc_keyborad_arrow_down"></use></svg>
+                <svg class="icon gdoc_keyborad_arrow_down"><use xlink:href="#gdoc_keyborad_arrow_down"></use></svg>
             </label>
             {{ end }}