From e7d308544526d8e36bea99e819f95a81b1b3ce09 Mon Sep 17 00:00:00 2001
From: Rapptz <rapptz@gmail.com>
Date: Tue, 22 Aug 2017 17:52:10 -0400
Subject: [PATCH] Webhook URLs can have dashes and underscores.

---
 discord/webhook.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/discord/webhook.py b/discord/webhook.py
index e1b62c211..811b0b608 100644
--- a/discord/webhook.py
+++ b/discord/webhook.py
@@ -406,7 +406,7 @@ class Webhook:
             The URL is invalid.
         """
 
-        m = re.search(r'discordapp.com/api/webhooks/(?P<id>[0-9]{17,21})/(?P<token>[A-Za-z0-9\.]{60,68})', url)
+        m = re.search(r'discordapp.com/api/webhooks/(?P<id>[0-9]{17,21})/(?P<token>[A-Za-z0-9\.\-\_]{60,68})', url)
         if m is None:
             raise InvalidArgument('Invalid webhook URL given.')
         return cls(m.groupdict(), adapter=adapter)