diff --git a/app/views/catalog/_facet_layout.html.erb b/app/views/catalog/_facet_layout.html.erb
index 1ca6a45ceb..df203be4cc 100644
--- a/app/views/catalog/_facet_layout.html.erb
+++ b/app/views/catalog/_facet_layout.html.erb
@@ -1,5 +1,5 @@
 <div class="panel panel-default facet_limit blacklight-<%= facet_field.key.parameterize %> <%= 'facet_limit-active' if facet_field_in_params?(facet_field.key) %>">
-  <div class="<%= "collapsed" if should_collapse_facet?(facet_field) %> collapse-toggle panel-heading" data-toggle="collapse" data-target="#<%= facet_field_id(facet_field) %>">
+  <div class="<%= "collapsed" if should_collapse_facet?(facet_field) %> collapse-toggle panel-heading" aria-expanded="false" data-toggle="collapse" data-target="#<%= facet_field_id(facet_field) %>">
     <h3 class="panel-title facet-field-heading">
       <%= link_to facet_field_label(facet_field.key), "#", :"data-turbolinks" => false, :"data-no-turbolink" => true %>
     </h3>
diff --git a/app/views/catalog/_per_page_widget.html.erb b/app/views/catalog/_per_page_widget.html.erb
index 08076ae50d..499f5108dd 100644
--- a/app/views/catalog/_per_page_widget.html.erb
+++ b/app/views/catalog/_per_page_widget.html.erb
@@ -2,7 +2,7 @@
 
   <span class="sr-only"><%= t('blacklight.search.per_page.title') %></span>
 <div id="per_page-dropdown" class="btn-group">
-  <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">
+  <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
     <%= t(:'blacklight.search.per_page.button_label', :count => current_per_page) %> <span class="caret"></span>
   </button>
   <ul class="dropdown-menu" role="menu">
diff --git a/app/views/catalog/_sort_widget.html.erb b/app/views/catalog/_sort_widget.html.erb
index 720006fad0..d8be14e61c 100644
--- a/app/views/catalog/_sort_widget.html.erb
+++ b/app/views/catalog/_sort_widget.html.erb
@@ -1,6 +1,6 @@
 <% if show_sort_and_per_page? and active_sort_fields.many? %>
 <div id="sort-dropdown" class="btn-group">
-  <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">
+  <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false">
       <%= t('blacklight.search.sort.label', :field =>sort_field_label(current_sort_field.key)) %> <span class="caret"></span>
   </button>