Index: src/bp-messages/bp-messages-widgets.php
===================================================================
--- src/bp-messages/bp-messages-widgets.php	(revision 9205)
+++ src/bp-messages/bp-messages-widgets.php	(working copy)
@@ -62,6 +62,14 @@
 		extract( $args );
 
 		$title = ! empty( $instance['title'] ) ? $instance['title'] : '';
+
+		/**
+		 * Filters the widget title.
+		 *
+		 * @since BuddyPress (1.9.0)
+		 *
+		 * @param string $title The widget title.
+		 */
 		$title = apply_filters( 'widget_title', $title, $instance );
 
 		echo $before_widget;