diff --git a/mautrix_telegram/portal_util/message_convert.py b/mautrix_telegram/portal_util/message_convert.py
index f7aa5532..3652c26e 100644
--- a/mautrix_telegram/portal_util/message_convert.py
+++ b/mautrix_telegram/portal_util/message_convert.py
@@ -237,10 +237,12 @@ def _caption_to_message(converted: ConvertedMessage) -> None:
             content["format"] = Format.HTML.value
 
     def _get_external_url(self, evt: Message) -> str | None:
-        if self.portal.peer_type == "chat":
-            return f"https://t.me/c/{self.portal.tgid}/{evt.id}"
-        if self.portal.username is not None:
+        if self.portal.peer_type == "channel" and self.portal.username is not None:
             return f"https://t.me/{self.portal.username}/{evt.id}"
+        elif self.portal.peer_type != "user":
+            return f"https://t.me/c/{self.portal.tgid}/{evt.id}"
+        else:
+            return f"https://t.me/{self.portal.tgid}/{evt.id}"
         return None
 
     @staticmethod