diff --git a/telethon_examples/assistant.py b/telethon_examples/assistant.py
index 51743ed3..720f6071 100644
--- a/telethon_examples/assistant.py
+++ b/telethon_examples/assistant.py
@@ -279,7 +279,7 @@ async def handler(event):
         text += '\n\nYou can suggest new commands [here](https://docs.google.com/'\
                 'spreadsheets/d/12yWwixUu_vB426_toLBAiajXxYKvR2J1DD6yZtQz9l4/edit).'
         text.replace('#','/')
-        text ++ '\nCommand prefixes supports both hastag and forward slash'
+        text += '\nCommand prefixes supports both hastag and forward slash'
         message = await event.respond(text, link_preview=False)