diff --git a/src/callbacks.py b/src/callbacks.py
index 42dc4b179..01e07623e 100644
--- a/src/callbacks.py
+++ b/src/callbacks.py
@@ -83,7 +83,7 @@ def reply(msg, s):
         m = ircmsgs.privmsg(msg.args[0], '%s: %s' % (msg.nick, s))
     else:
         m = ircmsgs.privmsg(msg.nick, s)
-    if len(m) > 450:
+    if len(m) > 512:
         m = reply(msg, 'My response would\'ve been too long.')
     return m