diff --git a/telethon/extensions/tcp_client.py b/telethon/extensions/tcp_client.py
index 3879bcd3..6feb9841 100644
--- a/telethon/extensions/tcp_client.py
+++ b/telethon/extensions/tcp_client.py
@@ -8,7 +8,7 @@ from threading import Lock
 
 class TcpClient:
     def __init__(self, proxy=None, timeout=timedelta(seconds=5)):
-        self._proxy = proxy
+        self.proxy = proxy
         self._socket = None
         self._closing_lock = Lock()
 
@@ -20,15 +20,15 @@ class TcpClient:
             raise ValueError('Invalid timeout type', type(timeout))
 
     def _recreate_socket(self, mode):
-        if self._proxy is None:
+        if self.proxy is None:
             self._socket = socket.socket(mode, socket.SOCK_STREAM)
         else:
             import socks
             self._socket = socks.socksocket(mode, socket.SOCK_STREAM)
-            if type(self._proxy) is dict:
-                self._socket.set_proxy(**self._proxy)
+            if type(self.proxy) is dict:
+                self._socket.set_proxy(**self.proxy)
             else:  # tuple, list, etc.
-                self._socket.set_proxy(*self._proxy)
+                self._socket.set_proxy(*self.proxy)
 
         self._socket.settimeout(self.timeout)
 
diff --git a/telethon/telegram_bare_client.py b/telethon/telegram_bare_client.py
index 401d3982..4fb1e60f 100644
--- a/telethon/telegram_bare_client.py
+++ b/telethon/telegram_bare_client.py
@@ -276,7 +276,8 @@ class TelegramBareClient:
             session.port = dc.port
             client = TelegramBareClient(
                 session, self.api_id, self.api_hash,
-                timeout=self._connection.get_timeout()
+                proxy=self._sender.connection.conn.proxy,
+                timeout=self._sender.connection.get_timeout()
             )
             client.connect(exported_auth=export_auth)
 
diff --git a/telethon/telegram_client.py b/telethon/telegram_client.py
index 2f848434..18f305ac 100644
--- a/telethon/telegram_client.py
+++ b/telethon/telegram_client.py
@@ -225,7 +225,7 @@ class TelegramClient(TelegramBareClient):
         if on_dc is None:
             client = TelegramBareClient(
                 self.session, self.api_id, self.api_hash,
-                proxy=self.proxy, timeout=timeout
+                proxy=self._sender.connection.conn.proxy, timeout=timeout
             )
             client.connect()
         else: