diff --git a/app/views/shared/_filter_subnav.html.erb b/app/views/shared/_filter_subnav.html.erb
index 3607290af..d03ab3ea9 100644
--- a/app/views/shared/_filter_subnav.html.erb
+++ b/app/views/shared/_filter_subnav.html.erb
@@ -3,7 +3,7 @@
    #   i18n_namespace: for example "moderation.debates.index"
 %>
 
-<dl class="sub-nav">
+<dl class="sub-nav clear">
   <dt class="sr-only"><%= t("#{i18n_namespace}.filter") %>: </dt>
 
   <% @valid_filters.each do |filter| %>