diff --git a/js/greeter.js b/js/greeter.js
index a529f70..eef6852 100644
--- a/js/greeter.js
+++ b/js/greeter.js
@@ -722,7 +722,7 @@ class AntergosTheme {
 		_self.selected_user = null;
 		_self.auth_pending = false;
 
-		if ( $(event.target).hasClass('alert') ) {
+		if ( !!event && $(event.target).hasClass('alert') ) {
 			/* We were triggered by the authentication failed message being dismissed.
 			 * Keep the same account selected so user can retry without re-selecting an account.
 			 */