diff --git a/pyrogram/client/client.py b/pyrogram/client/client.py
index a9aa2e9c..4cef260d 100644
--- a/pyrogram/client/client.py
+++ b/pyrogram/client/client.py
@@ -118,7 +118,7 @@ class Client:
             Thread pool size for handling incoming updates. Defaults to 4.
     """
 
-    INVITE_LINK_RE = re.compile(r"^(?:https?://)?(?:t\.me/joinchat/)?(.+)$")
+    INVITE_LINK_RE = re.compile(r"^(?:https?://)?(?:t\.me/joinchat/)?([\w-]+)$")
     DIALOGS_AT_ONCE = 100
     UPDATES_WORKERS = 2
     DOWNLOAD_WORKERS = 1