diff --git a/plugins/relay.py b/plugins/relay.py
index 66237d7..1be7a45 100644
--- a/plugins/relay.py
+++ b/plugins/relay.py
@@ -184,8 +184,8 @@ def normalizeNick(irc, netname, nick, times_tagged=0, uid=''):
 def normalizeHost(irc, host):
     """Creates a normalized hostname for the given host suitable for
     introduction to a remote network (as a relay client)."""
-    if irc.protoname == 'unreal':
-        # UnrealIRCd doesn't allow slashes in hostnames
+    if irc.protoname not in ('inspircd', 'ts6', 'clientbot', 'nefarious'):
+        # UnrealIRCd and IRCd-Hybrid don't allow slashes in hostnames
         host = host.replace('/', '.')
     return host[:63]  # Limit hosts to 63 chars for best compatibility