diff --git a/mods/default/mapgen.lua b/mods/default/mapgen.lua
index 4b61518e..016d58de 100644
--- a/mods/default/mapgen.lua
+++ b/mods/default/mapgen.lua
@@ -1044,7 +1044,7 @@ function default.register_decorations()
 		deco_type = "schematic",
 		place_on = {"default:dirt_with_grass", "default:dirt"},
 		sidelen = 80,
-		fill_ratio = 0.09,
+		fill_ratio = 0.1,
 		biomes = {"rainforest", "rainforest_swamp"},
 		y_min = 0,
 		y_max = 31000,
@@ -1057,7 +1057,7 @@ function default.register_decorations()
 		deco_type = "schematic",
 		place_on = {"default:dirt_with_grass", "default:dirt"},
 		sidelen = 80,
-		fill_ratio = 0.01,
+		fill_ratio = 0.005,
 		biomes = {"rainforest", "rainforest_swamp"},
 		y_min = 1,
 		y_max = 31000,