diff --git a/Telegram/SourceFiles/payments/stripe/stripe_card_validator.cpp b/Telegram/SourceFiles/payments/stripe/stripe_card_validator.cpp
index 99a037e22..599a3922d 100644
--- a/Telegram/SourceFiles/payments/stripe/stripe_card_validator.cpp
+++ b/Telegram/SourceFiles/payments/stripe/stripe_card_validator.cpp
@@ -235,7 +235,7 @@ ExpireDateValidationResult ValidateExpireDate(
 		return { ValidationState::Incomplete };
 	}
 	const auto normalized = (sanitized[0] > '1' ? "0" : "") + sanitized;
-	const auto month = normalized.mid(0, 2).toInt();
+	const auto month = base::StringViewMid(normalized, 0, 2).toInt();
 	if (month < 1 || month > 12) {
 		return { ValidationState::Invalid };
 	} else if (normalized.size() < 4) {
@@ -243,7 +243,7 @@ ExpireDateValidationResult ValidateExpireDate(
 	} else if (normalized.size() > 4) {
 		return { ValidationState::Invalid };
 	}
-	const auto year = 2000 + normalized.mid(2).toInt();
+	const auto year = 2000 + base::StringViewMid(normalized, 2).toInt();
 
 	const auto thresholdDate = overrideExpireDateThreshold.value_or(
 		QDate::currentDate());