diff --git a/Milter/utils.py b/Milter/utils.py
index 5fa3f8807eb6d00162ba7497a458d747bbffadac..25f057d55a6a145c43c8b7ebb694bb3a9a1464e5 100644
--- a/Milter/utils.py
+++ b/Milter/utils.py
@@ -65,7 +65,9 @@ def iniplist(ipaddr,iplist):
   >>> iniplist('2001:610:779:0:223:6cff:fe9a:9cf3',['127.0.0.1','172.20.1.0/24','2001:610:779::/48'])
   True
   >>> iniplist('2G01:610:779:0:223:6cff:fe9a:9cf3',['127.0.0.1','172.20.1.0/24','2001:610:779::/48'])
-  True
+  Traceback (most recent call last):
+    ...
+  ValueError: Invalid ip syntax:2G01:610:779:0:223:6cff:fe9a:9cf3
   """
   if ip4re.match(ipaddr):
     ipnum = addr2bin(ipaddr)
diff --git a/setup.cfg b/setup.cfg
index eda58bb8eac6cfc5ae095047c50a21ee16f99b4e..5d6c36cb3d4553a35c1acfb4f8d883b8b62cc814 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bdist_rpm]
-python=python2.4
+python=python2.6
 doc_files=README NEWS TODO
 packager=Stuart D. Gathman <stuart@bmsi.com>
 release=1