From bcc462ffc51a781d3df92fcb59bbff6c65a0c598 Mon Sep 17 00:00:00 2001
From: painor <30215770+painor@users.noreply.github.com>
Date: Wed, 10 Jul 2019 14:37:33 +0100
Subject: [PATCH] Small fix for callbackquery

---
 telethon/events/callbackquery.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/telethon/events/callbackquery.py b/telethon/events/callbackquery.py
index 12376ca8..03da1596 100644
--- a/telethon/events/callbackquery.py
+++ b/telethon/events/callbackquery.py
@@ -42,7 +42,7 @@ class CallbackQuery(EventBuilder):
         if isinstance(data, str):
             data = data.encode('utf-8')
         if isinstance(pattern, str):
-            pattern = data.encode('utf-8')
+            pattern = pattern.encode('utf-8')
 
         match = data if data else pattern