--- a/src/gui.h	Sat Jan 19 14:00:04 2008 +0000
+++ b/src/gui.h	Sat Jan 19 17:00:54 2008 +0000
@@ -60,6 +60,7 @@
 	DDSP_CREATE_DESERT,
 	DDSP_CREATE_ROCKS,
 	DDSP_CREATE_WATER,
+	DDSP_CREATE_RIVER,
 	DDSP_PLANT_TREES,
 	DDSP_BUILD_BRIDGE,