diff --git a/app/assets/javascripts/top_menu.js b/app/assets/javascripts/top_menu.js
index 87f4222799..a1345badca 100644
--- a/app/assets/javascripts/top_menu.js
+++ b/app/assets/javascripts/top_menu.js
@@ -43,6 +43,11 @@
       this.setupDropdownHoverAndClick();
       this.registerEventHandlers();
       this.closeOnBodyClick();
+      this.accessibility();
+    },
+
+    accessibility: function () {
+      $(".drop-down > ul").attr("aria-expanded","false");
     },
 
     toggleClick: function (dropdown) {
@@ -183,13 +188,13 @@
     slideDown: function (dropdown) {
       var toDrop = dropdown.find("> ul");
       dropdown.addClass("open");
-      toDrop.slideDown(animationRate);
+      toDrop.slideDown(animationRate).attr("aria-expanded","true");
     },
 
     slideUp: function (dropdown) {
       var toDrop = $(dropdown).find("> ul");
       dropdown.removeClass("open");
-      toDrop.slideUp(animationRate);
+      toDrop.slideUp(animationRate).attr("aria-expanded","false");
     },
 
     // If there is ANY input, it will have precedence over links,
diff --git a/lib/redmine/menu_manager/top_menu_helper.rb b/lib/redmine/menu_manager/top_menu_helper.rb
index 50cf61d78e..fae94cc7ec 100644
--- a/lib/redmine/menu_manager/top_menu_helper.rb
+++ b/lib/redmine/menu_manager/top_menu_helper.rb
@@ -56,7 +56,8 @@ module Redmine::MenuManager::TopMenuHelper
                               action: 'index' },
                             title: l(:label_project_plural),
                             accesskey: OpenProject::AccessKeys.key_for(:project_search),
-                            class: 'icon5 icon-projects'
+                            class: 'icon5 icon-projects',
+                            aria: { haspopup: 'true' }
 
     if User.current.impaired?
       result =  content_tag :li do
@@ -132,7 +133,7 @@ module Redmine::MenuManager::TopMenuHelper
   end
 
   def render_user_drop_down(items)
-    render_drop_down_menu_node link_to_user(User.current, title: User.current.to_s),
+    render_drop_down_menu_node link_to_user(User.current, title: User.current.to_s, aria: { haspopup: 'true' }),
                                items,
                                class: 'drop-down last-child'
   end
@@ -149,7 +150,7 @@ module Redmine::MenuManager::TopMenuHelper
   end
 
   def render_module_top_menu_node(items = more_top_menu_items)
-    render_drop_down_menu_node link_to(l(:label_modules), '#', title: l(:label_modules), class: 'icon5 icon-modules'),
+    render_drop_down_menu_node link_to(l(:label_modules), '#', title: l(:label_modules), class: 'icon5 icon-modules', aria: { haspopup: 'true' }),
                                items,
                                id: 'more-menu'
   end