diff --git a/source/org/jivesoftware/smackx/SubjectUpdatedListener.java b/source/org/jivesoftware/smackx/SubjectUpdatedListener.java
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+++ b/source/org/jivesoftware/smackx/SubjectUpdatedListener.java
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+/**
+* $RCSfile$
+* $Revision$
+* $Date$
+*
+* Copyright (C) 2002-2003 Jive Software. All rights reserved.
+* ====================================================================
+* The Jive Software License (based on Apache Software License, Version 1.1)
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* 1. Redistributions of source code must retain the above copyright
+*    notice, this list of conditions and the following disclaimer.
+*
+* 2. Redistributions in binary form must reproduce the above copyright
+*    notice, this list of conditions and the following disclaimer in
+*    the documentation and/or other materials provided with the
+*    distribution.
+*
+* 3. The end-user documentation included with the redistribution,
+*    if any, must include the following acknowledgment:
+*       "This product includes software developed by
+*        Jive Software (http://www.jivesoftware.com)."
+*    Alternately, this acknowledgment may appear in the software itself,
+*    if and wherever such third-party acknowledgments normally appear.
+*
+* 4. The names "Smack" and "Jive Software" must not be used to
+*    endorse or promote products derived from this software without
+*    prior written permission. For written permission, please
+*    contact webmaster@jivesoftware.com.
+*
+* 5. Products derived from this software may not be called "Smack",
+*    nor may "Smack" appear in their name, without prior written
+*    permission of Jive Software.
+*
+* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED.  IN NO EVENT SHALL JIVE SOFTWARE OR
+* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+* SUCH DAMAGE.
+* ====================================================================
+*/
+
+package org.jivesoftware.smackx;
+
+/**
+ * A listener that is fired anytime a MUC room changes its subject.
+ * 
+ * @author Gaston Dombiak
+ */
+public interface SubjectUpdatedListener {
+
+    /**
+     * Called when a MUC room has changed its subject.
+     * 
+     * @param subject the new room's subject.
+     * @param from the user that changed the room's subject (e.g. room@conference.jabber.org/nick).
+     */
+    public abstract void subjectUpdated(String subject, String from);
+
+}