diff --git a/telethon/tl/custom/participantpermissions.py b/telethon/tl/custom/participantpermissions.py
index c59a05ed..d3719778 100644
--- a/telethon/tl/custom/participantpermissions.py
+++ b/telethon/tl/custom/participantpermissions.py
@@ -92,9 +92,12 @@ class ParticipantPermissions:
         Whether the administrator can add new administrators with the same or
         less permissions than them.
         """
-        if not self.is_admin or (self.is_chat and not self.is_creator):
+        if not self.is_admin:
             return False
 
+        if self.is_chat:
+            return self.is_creator
+
         return self.participant.admin_rights.add_admins
 
     ban_users = property(**_admin_prop('ban_users', """