diff --git a/irc.py b/irc.py
index 45bac0c..39cc974 100644
--- a/irc.py
+++ b/irc.py
@@ -248,7 +248,7 @@ class Message:
         The message's content.
     """
     pattern = re.compile(
-            r"^:(?P<author>[\w.~|]+)(?:!(?P<host>\S+))? PRIVMSG (?P<to>\S+) :(?P<text>.+)"
+            r"^:(?P<author>[\w.~|\-\[\]]+)(?:!(?P<host>\S+))? PRIVMSG (?P<to>\S+) :(?P<text>.+)"
         )
 
     def __init__(self, raw: str):