diff --git a/Telegram/SourceFiles/payments/stripe/stripe_card_validator.h b/Telegram/SourceFiles/payments/stripe/stripe_card_validator.h
index 0cc6e5013b..68fdf5ad13 100644
--- a/Telegram/SourceFiles/payments/stripe/stripe_card_validator.h
+++ b/Telegram/SourceFiles/payments/stripe/stripe_card_validator.h
@@ -9,6 +9,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 #include "stripe/stripe_card.h"
 #include <vector>
+#include <optional>
 
 class QDate;