diff --git a/core/modules/contextual/contextual.module b/core/modules/contextual/contextual.module
index f859409..3ceda05 100644
--- a/core/modules/contextual/contextual.module
+++ b/core/modules/contextual/contextual.module
@@ -110,6 +110,7 @@ function contextual_library_info() {
       array('system', 'jquery.once'),
       array('system', 'backbone'),
       array('system', 'drupal.tabbingmanager'),
+      array('system', 'drupal.announce'),
     ),
   );
 
diff --git a/core/modules/overlay/overlay.module b/core/modules/overlay/overlay.module
index 83ba145..75f3706 100644
--- a/core/modules/overlay/overlay.module
+++ b/core/modules/overlay/overlay.module
@@ -227,6 +227,7 @@ function overlay_library_info() {
       array('system', 'drupalSettings'),
       array('system', 'drupal.displace'),
       array('system', 'drupal.tabbingmanager'),
+      array('system', 'drupal.announce'),
       array('system', 'jquery.ui.core'),
       array('system', 'jquery.bbq'),
     ),