diff --git a/Telegram/SourceFiles/settings/settings_codes.cpp b/Telegram/SourceFiles/settings/settings_codes.cpp
index a3cf0ff5d..b0a49a1e3 100644
--- a/Telegram/SourceFiles/settings/settings_codes.cpp
+++ b/Telegram/SourceFiles/settings/settings_codes.cpp
@@ -17,6 +17,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "main/main_account.h"
 #include "main/main_domain.h"
 #include "ui/boxes/confirm_box.h"
+#include "boxes/premium_limits_box.h"
 #include "lang/lang_cloud_manager.h"
 #include "lang/lang_instance.h"
 #include "core/application.h"
@@ -249,6 +250,13 @@ auto GenerateCodes() {
 		Data::CloudThemes::SetTestingColors(now);
 		Ui::Toast::Show(now ? "Testing chat theme colors!" : "Not testing..");
 	});
+	codes.emplace(qsl("usernames"), [](SessionController *window) {
+		if (window) {
+			Ui::show(
+				Box(PublicLinksLimitBox, window, Fn<void()>()),
+				Ui::LayerOption::KeepOther);
+		}
+	});
 	codes.emplace(qsl("reloadlang"), [](SessionController *window) {
 		Kotato::Lang::Load(
 			Lang::GetInstance().baseId(),