1 files changed, 1 insertions, 0 deletions
diff --git a/src/gui.h b/src/gui.h
index 2f1882a85..e412af035 100644
--- a/src/gui.h
+++ b/src/gui.h
@@ -60,6 +60,7 @@ enum {
 	DDSP_CREATE_DESERT,
 	DDSP_CREATE_ROCKS,
 	DDSP_CREATE_WATER,
+	DDSP_CREATE_RIVER,
 	DDSP_PLANT_TREES,
 	DDSP_BUILD_BRIDGE,