diff --git a/protocols/inspircd.py b/protocols/inspircd.py
index 207eb61..b832060 100644
--- a/protocols/inspircd.py
+++ b/protocols/inspircd.py
@@ -10,7 +10,7 @@ from log import log
 
 from classes import *
 
-casemapping = 'ascii'
+casemapping = 'rfc1459'
 
 # Raw commands sent from servers vary from protocol to protocol. Here, we map
 # non-standard names to our hook handlers, so plugins get the information they need.