diff --git a/Telegram/SourceFiles/payments/payments_form.cpp b/Telegram/SourceFiles/payments/payments_form.cpp
index 8cdd0b9a2c..c6ddd84a9f 100644
--- a/Telegram/SourceFiles/payments/payments_form.cpp
+++ b/Telegram/SourceFiles/payments/payments_form.cpp
@@ -27,6 +27,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "smartglocal/smartglocal_token.h"
 #include "storage/storage_account.h"
 #include "ui/image/image.h"
+#include "ui/text/format_values.h"
 #include "ui/text/text_entity.h"
 #include "apiwrap.h"
 #include "core/core_cloud_password.h"
@@ -385,7 +386,7 @@ void Form::requestForm() {
 			const auto amount = tlPrices.empty()
 				? 0
 				: tlPrices.front().data().vamount().v;
-			if (currency != "XTR" || !amount) {
+			if (currency != ::Ui::kCreditsCurrency || !amount) {
 				using Type = Error::Type;
 				_updates.fire(Error{ Type::Form, u"Bad Stars Form."_q });
 				return;
diff --git a/Telegram/SourceFiles/payments/payments_non_panel_process.cpp b/Telegram/SourceFiles/payments/payments_non_panel_process.cpp
index 3669576d9a..47232ac8ac 100644
--- a/Telegram/SourceFiles/payments/payments_non_panel_process.cpp
+++ b/Telegram/SourceFiles/payments/payments_non_panel_process.cpp
@@ -11,6 +11,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "payments/payments_form.h"
 #include "history/history_item.h"
 #include "ui/layers/generic_box.h"
+#include "ui/text/format_values.h"
 #include "window/window_session_controller.h"
 #include "boxes/send_credits_box.h"
 
@@ -20,7 +21,7 @@ namespace {
 bool IsCreditsInvoice(not_null<HistoryItem*> item) {
 	const auto media = item->media();
 	const auto invoice = media ? media->invoice() : nullptr;
-	return invoice && (invoice->currency == "XTR");
+	return invoice && (invoice->currency == Ui::kCreditsCurrency);
 }
 
 } // namespace
diff --git a/Telegram/SourceFiles/ui/text/format_values.h b/Telegram/SourceFiles/ui/text/format_values.h
index b73775118a..e4294eed15 100644
--- a/Telegram/SourceFiles/ui/text/format_values.h
+++ b/Telegram/SourceFiles/ui/text/format_values.h
@@ -13,6 +13,8 @@ inline constexpr auto FileStatusSizeReady = 0xFFFFFFF0LL;
 inline constexpr auto FileStatusSizeLoaded = 0xFFFFFFF1LL;
 inline constexpr auto FileStatusSizeFailed = 0xFFFFFFF2LL;
 
+inline const QString kCreditsCurrency = u"XTR"_q;
+
 [[nodiscard]] QString FormatSizeText(qint64 size);
 [[nodiscard]] QString FormatDownloadText(qint64 ready, qint64 total);
 [[nodiscard]] QString FormatProgressText(qint64 ready, qint64 total);