diff --git a/src/ircmsgs.py b/src/ircmsgs.py
index 8db844c3f..86a810ead 100644
--- a/src/ircmsgs.py
+++ b/src/ircmsgs.py
@@ -182,7 +182,7 @@ class IrcMsg(object):
             return self._hash
         self._hash = hash(self.command) ^ \
                      hash(self.prefix) ^ \
-                     hash(self.args)
+                     hash(repr(self.args))
         return self._hash
 
     def __repr__(self):
@@ -522,7 +522,8 @@ def unbans(channel, hostmasks, prefix='', msg=None):
     if msg and not prefix:
         prefix = msg.prefix
     return IrcMsg(prefix=prefix, command='MODE', msg=msg,
-                  args=(channel, '-' + ('b'*len(hostmasks)), hostmasks))
+                  args=(channel, '-' + ('b'*len(hostmasks)),
+                                        ' '.join(hostmasks)))
 
 def kick(channel, nick, s='', prefix='', msg=None):
     """Returns a KICK to kick nick from channel with the message msg."""
diff --git a/src/version.py b/src/version.py
index 632651323..1d3d510f6 100644
--- a/src/version.py
+++ b/src/version.py
@@ -1,3 +1,3 @@
 """stick the various versioning attributes in here, so we only have to change
 them once."""
-version = '0.83.4.1+limnoria (2011-07-08T10:41:36+0200)'
+version = '0.83.4.1+limnoria (2011-07-09T13:42:34+0200)'