diff --git a/src/utils/web.py b/src/utils/web.py
index 6a1fa9361..8935f7ef5 100644
--- a/src/utils/web.py
+++ b/src/utils/web.py
@@ -57,7 +57,7 @@ _octet = r'(?:2(?:[0-4]\d|5[0-5])|1\d\d|\d{1,2})'
 _ipAddr = r'%s(?:\.%s){3}' % (_octet, _octet)
 # Base domain regex off RFC 1034 and 1738
 _label = r'[0-9a-z][-0-9a-z]*[0-9a-z]?'
-_domain = r'%s(?:\.%s)*\.[a-z][-0-9a-z]*[a-z]?' % (_label, _label)
+_domain = r'%s(?:\.%s)*\.[0-9a-z][-0-9a-z]+' % (_label, _label)
 _urlRe = r'(\w+://(?:%s|%s)(?::\d+)?(?:/[^\])>\s]*)?)' % (_domain, _ipAddr)
 urlRe = re.compile(_urlRe, re.I)
 _httpUrlRe = r'(https?://(?:%s|%s)(?::\d+)?(?:/[^\])>\s]*)?)' % (_domain,