diff --git a/telethon_examples/assistant.py b/telethon_examples/assistant.py
index c55fc401..1a252298 100644
--- a/telethon_examples/assistant.py
+++ b/telethon_examples/assistant.py
@@ -62,10 +62,10 @@ SPAM = (
 )
 
 OFFTOPIC = {
--1001109500936:
+    -1001109500936:
     'That is not related to Telethon. '
-    'You may continue the conversation in @TelethonOffTopic'
--1001200633650:
+    'You may continue the conversation in @TelethonOffTopic',
+    -1001200633650:
     'That seems to be related to Telethon. Try asking in @TelethonChat'
 }