diff --git a/ChangeLog b/ChangeLog
index 3f948c3ad..44e05e303 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+	* Added supybot.reply.withNoticeWhenPrivate, to make the bot
+	reply with a notice when it privately messages a user -- this
+	generally means that the user's client won't open a query window,
+	which may be nice.  Do note that users can override this setting
+	via the user registry variable of the same name.
+	
 	* Added supybot.nick.alternates, which allows a list of alternate
 	nicks to try, in order, if the primary nick (supybot.nick) is
 	taken.  Also added a nick-perturbation function that will change
diff --git a/src/callbacks.py b/src/callbacks.py
index 4702d3bb9..7ecaa7c31 100644
--- a/src/callbacks.py
+++ b/src/callbacks.py
@@ -131,6 +131,9 @@ def reply(msg, s, prefixName=True, private=False,
             target = to
         else:
             target = msg.nick
+        # XXX: User value.
+        if conf.supybot.reply.withNoticeWhenPrivate():
+            notice = True
     if to is None:
         to = msg.nick
     # Ok, now let's make the payload:
diff --git a/src/conf.py b/src/conf.py
index c1e26374b..442bfa4a6 100644
--- a/src/conf.py
+++ b/src/conf.py
@@ -345,6 +345,13 @@ registerChannelValue(supybot.reply, 'withPrivateNotice',
     Private notices are particularly nice because they don't generally cause
     IRC clients to open a new query window."""))
 
+# XXX: User value.
+registerGlobalValue(supybot.reply, 'withNoticeWhenPrivate',
+    registry.Boolean(False, """Determines whether the bot will reply with a
+    notice when it is sending a private message, in order not to open a /query
+    window in clients.  This can be overridden by individual users via the user
+    configuration variable reply.withNoticeWhenPrivate."""))
+
 registerChannelValue(supybot.reply, 'withNickPrefix',
     registry.Boolean(True, """Determines whether the bot will always prefix the
     user's nick to its reply to that user's command."""))