From 417bfcd36e0c887ff8a4cfe416c5167fbdc6a99f Mon Sep 17 00:00:00 2001
From: Ivanzzzc <46572469+Ivanzzzc@users.noreply.github.com>
Date: Sun, 20 Jun 2021 16:57:05 +0300
Subject: [PATCH] Fix encoding of QR login URL (#3082)

Closes #3081.
---
 telethon/tl/custom/qrlogin.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/telethon/tl/custom/qrlogin.py b/telethon/tl/custom/qrlogin.py
index a92276c1..39585f2f 100644
--- a/telethon/tl/custom/qrlogin.py
+++ b/telethon/tl/custom/qrlogin.py
@@ -54,7 +54,7 @@ class QRLogin:
 
         The URL simply consists of `token` base64-encoded.
         """
-        return 'tg://login?token={}'.format(base64.b64encode(self._resp.token).decode('utf-8'))
+        return 'tg://login?token={}'.format(base64.urlsafe_b64encode(self._resp.token).decode('utf-8').rstrip('='))
 
     @property
     def expires(self) -> datetime.datetime: