diff --git a/td/generate/scheme/td_api.tl b/td/generate/scheme/td_api.tl
index fd1946ba4..3a832f5f0 100644
--- a/td/generate/scheme/td_api.tl
+++ b/td/generate/scheme/td_api.tl
@@ -56,7 +56,7 @@ authenticationCodeTypeFragment url:string length:int32 = AuthenticationCodeType;
 authenticationCodeTypeFirebaseAndroid nonce:bytes length:int32 = AuthenticationCodeType;
 
 //@description An authentication code is delivered via Firebase Authentication to the official iOS application
-//@receipt Receipt of successful applikation token validation to compare with receipt from push notification
+//@receipt Receipt of successful application token validation to compare with receipt from push notification
 //@push_timeout Time after the next authentication method is supposed to be used if verification push notification isn't received, in seconds
 //@length Length of the code
 authenticationCodeTypeFirebaseIos receipt:string push_timeout:int32 length:int32 = AuthenticationCodeType;
diff --git a/td/telegram/SendCodeHelper.cpp b/td/telegram/SendCodeHelper.cpp
index 91be3cb07..9c2421359 100644
--- a/td/telegram/SendCodeHelper.cpp
+++ b/td/telegram/SendCodeHelper.cpp
@@ -17,6 +17,12 @@ void SendCodeHelper::on_sent_code(telegram_api::object_ptr<telegram_api::auth_se
   sent_code_info_ = get_sent_authentication_code_info(std::move(sent_code->type_));
   next_code_info_ = get_authentication_code_info(std::move(sent_code->next_type_));
   next_code_timestamp_ = Time::now() + sent_code->timeout_;
+
+  if (next_code_info_.type == AuthenticationCodeInfo::Type::None &&
+      (sent_code_info_.type == AuthenticationCodeInfo::Type::FirebaseAndroid ||
+       sent_code_info_.type == AuthenticationCodeInfo::Type::FirebaseIos)) {
+    next_code_info_ = {AuthenticationCodeInfo::Type::Sms, sent_code_info_.length, string()};
+  }
 }
 
 void SendCodeHelper::on_phone_code_hash(string &&phone_code_hash) {