1 files changed, 3 insertions, 3 deletions
diff --git a/td/mtproto/Handshake.cpp b/td/mtproto/Handshake.cpp
index 43fdc3969..ebf38b2eb 100644
--- a/td/mtproto/Handshake.cpp
+++ b/td/mtproto/Handshake.cpp
@@ -185,7 +185,7 @@ Status AuthKeyHandshake::on_server_dh_params(Slice message, Callback *connection
   auto save_tmp_aes_iv = tmp_aes_iv;
   // encrypted_answer := AES256_ige_encrypt (answer_with_hash, tmp_aes_key, tmp_aes_iv);
   MutableSlice answer(const_cast<char *>(dh_params->encrypted_answer_.begin()), dh_params->encrypted_answer_.size());
-  aes_ige_decrypt(as_slice(tmp_aes_key), as_slice(tmp_aes_iv), answer, answer);
+  aes_ige_decrypt(as_slice(tmp_aes_key), as_mutable_slice(tmp_aes_iv), answer, answer);
   tmp_aes_iv = save_tmp_aes_iv;
 
   // answer_with_hash := SHA1(answer) + answer + (0-15 random bytes)
@@ -238,7 +238,7 @@ Status AuthKeyHandshake::on_server_dh_params(Slice message, Callback *connection
   Random::secure_bytes(encrypted_data.ubegin() + encrypted_data_size,
                        encrypted_data_size_with_pad - encrypted_data_size);
   tmp_KDF(server_nonce_, new_nonce_, &tmp_aes_key, &tmp_aes_iv);
-  aes_ige_encrypt(as_slice(tmp_aes_key), as_slice(tmp_aes_iv), encrypted_data, encrypted_data);
+  aes_ige_encrypt(as_slice(tmp_aes_key), as_mutable_slice(tmp_aes_iv), encrypted_data, encrypted_data);
 
   mtproto_api::set_client_DH_params set_client_dh_params(nonce_, server_nonce_, encrypted_data);
   send(connection, create_storer(set_client_dh_params));
@@ -289,7 +289,7 @@ Status AuthKeyHandshake::on_dh_gen_response(Slice message, Callback *connection)
 void AuthKeyHandshake::send(Callback *connection, const Storer &storer) {
   auto size = storer.size();
   auto writer = BufferWriter{size, 0, 0};
-  auto real_size = storer.store(writer.as_slice().ubegin());
+  auto real_size = storer.store(writer.as_mutable_slice().ubegin());
   CHECK(real_size == size);
   last_query_ = writer.as_buffer_slice();
   return do_send(connection, create_storer(last_query_.as_slice()));