diff --git a/mods/default/mapgen.lua b/mods/default/mapgen.lua
index d3a0508..29208e8 100644
--- a/mods/default/mapgen.lua
+++ b/mods/default/mapgen.lua
@@ -11,6 +11,7 @@ minetest.register_alias("mapgen_jungletree", "default:jungletree")
 minetest.register_alias("mapgen_jungleleaves", "default:jungleleaves")
 minetest.register_alias("mapgen_apple", "default:apple")
 minetest.register_alias("mapgen_water_source", "default:water_source")
+minetest.register_alias("mapgen_river_water_source", "default:water_source")
 minetest.register_alias("mapgen_dirt", "default:dirt")
 minetest.register_alias("mapgen_sand", "default:sand")
 minetest.register_alias("mapgen_gravel", "default:gravel")