diff --git a/mods/MAPGEN/mcl_biomes/init.lua b/mods/MAPGEN/mcl_biomes/init.lua
index 7be0ce9f48..9252781f89 100644
--- a/mods/MAPGEN/mcl_biomes/init.lua
+++ b/mods/MAPGEN/mcl_biomes/init.lua
@@ -758,6 +758,8 @@ local function register_biomes()
 		node_top = "mcl_colorblocks:hardened_clay",
 		depth_top = 1,
 		node_filler = "mcl_colorblocks:hardened_clay",
+		node_riverbed = "mcl_core:redsand",
+		depth_riverbed = 1,
 		node_stone = "mcl_colorblocks:hardened_clay",
 		y_min = 11,
 		y_max = mcl_vars.mg_overworld_max,
@@ -800,6 +802,8 @@ local function register_biomes()
 		node_top = "mcl_colorblocks:hardened_clay",
 		depth_top = 1,
 		node_filler = "mcl_colorblocks:hardened_clay",
+		node_riverbed = "mcl_core:redsand",
+		depth_riverbed = 1,
 		node_stone = "mcl_colorblocks:hardened_clay",
 		y_min = 11,
 		y_max = 29,
@@ -814,7 +818,9 @@ local function register_biomes()
 		node_top = "mcl_core:dirt_with_dry_grass",
 		depth_top = 1,
 		node_filler = "mcl_core:dirt",
-		filler_depth = 1,
+		depth_filler = 1,
+		node_riverbed = "mcl_core:redsand",
+		depth_riverbed = 1,
 		node_stone = "mcl_colorblocks:hardened_clay",
 		y_min = 30,
 		y_max = mcl_vars.mg_overworld_max,