diff --git a/pyrogram/client/ext/utils.py b/pyrogram/client/ext/utils.py
index d236c69a..f87b9035 100644
--- a/pyrogram/client/ext/utils.py
+++ b/pyrogram/client/ext/utils.py
@@ -909,7 +909,7 @@ def parse_chat_full(
 
             if full_chat.pinned_msg_id:
                 parsed_chat.pinned_message = client.get_messages(
-                    int("-100" + str(full_chat.id)),
+                    parsed_chat.id,
                     full_chat.pinned_msg_id
                 )