diff --git a/telethon_examples/print_updates.py b/telethon_examples/print_updates.py
index 86e2d33c..e21fdfc0 100755
--- a/telethon_examples/print_updates.py
+++ b/telethon_examples/print_updates.py
@@ -9,7 +9,7 @@ from os import environ
 # or even hardcode them (not recommended)
 
 def main():
-    session_name = 'session'
+    session_name = environ.get('TG_SESSION','session')
     user_phone = environ['TG_PHONE'],
     client = TelegramClient(session_name,
             int(environ['TG_API_ID']),