diff --git a/pyrogram/client.py b/pyrogram/client.py
index 9de55621..f213c57a 100644
--- a/pyrogram/client.py
+++ b/pyrogram/client.py
@@ -513,7 +513,11 @@ class Client(Methods):
             elif isinstance(peer, (raw.types.Channel, raw.types.ChannelForbidden)):
                 peer_id = utils.get_channel_id(peer.id)
                 access_hash = peer.access_hash
-                username = (getattr(peer, "username", None) or "").lower() or None
+                username = (
+                    peer.username.lower() if peer.username
+                    else peer.usernames[0].username.lower() if peer.usernames
+                    else None
+                )
                 peer_type = "channel" if peer.broadcast else "supergroup"
             else:
                 continue