diff --git a/mautrix_telegram/portal.py b/mautrix_telegram/portal.py
index 5b9cd7c8..9c411a21 100644
--- a/mautrix_telegram/portal.py
+++ b/mautrix_telegram/portal.py
@@ -1165,7 +1165,7 @@ class Portal:
                     continue
                 user = u.User.get_by_mxid(user_id, create=False)
                 if user and user.tgid:
-                    entity = self.get_input_entity(user)
+                    entity = await self.get_input_entity(user)
                     if entity:
                         break
         if not entity: