diff --git a/mautrix_telegram/portal.py b/mautrix_telegram/portal.py
index 9b6f3642..0590c5e6 100644
--- a/mautrix_telegram/portal.py
+++ b/mautrix_telegram/portal.py
@@ -1913,7 +1913,7 @@ class Portal:
             existing.delete()
         except KeyError:
             pass
-        self.db_instance.update(tgid=new_id, tg_receiver=new_id)
+        self.db_instance.update(tgid=new_id, tg_receiver=new_id, peer_type=self.peer_type)
         old_id = self.tgid
         self.tgid = new_id
         self.tg_receiver = new_id