Index: trunk/resources/data/defaultpresets.xml
===================================================================
--- trunk/resources/data/defaultpresets.xml	(revision 18995)
+++ trunk/resources/data/defaultpresets.xml	(revision 18997)
@@ -9989,4 +9989,5 @@
                 <role key="side_stream" text="branch waterways (no riverbank)" requisite="optional" type="way" member_expression="waterway -waterway:riverbank" />
                 <role key="spring" text="spring of waterway" requisite="optional" type="node" />
+                <role key="mouth" text="place where waterway ends" requisite="optional" type="node" />
             </roles>
         </item> <!-- Waterway -->