diff --git a/js/gdm/authPrompt.js b/js/gdm/authPrompt.js
index bab6d5dee..4bcd028ae 100644
--- a/js/gdm/authPrompt.js
+++ b/js/gdm/authPrompt.js
@@ -132,6 +132,7 @@ var AuthPrompt = GObject.registerClass({
 
         this.cancelButton = new St.Button({
             style_class: 'modal-dialog-button button cancel-button',
+            accessible_name: _('Cancel'),
             button_mask: St.ButtonMask.ONE | St.ButtonMask.THREE,
             reactive: this._hasCancelButton,
             can_focus: this._hasCancelButton,
diff --git a/js/ui/unlockDialog.js b/js/ui/unlockDialog.js
index f894709ff..14bd972d6 100644
--- a/js/ui/unlockDialog.js
+++ b/js/ui/unlockDialog.js
@@ -555,6 +555,7 @@ var UnlockDialog = GObject.registerClass({
         // Switch User button
         this._otherUserButton = new St.Button({
             style_class: 'modal-dialog-button button switch-user-button',
+            accessible_name: _('Log in as another user'),
             can_focus: true,
             reactive: true,
             x_align: Clutter.ActorAlign.END,