diff --git a/mods/bg_tree/decompose.lua b/mods/bg_tree/decompose.lua
index 7769ae2..0235b8b 100644
--- a/mods/bg_tree/decompose.lua
+++ b/mods/bg_tree/decompose.lua
@@ -42,7 +42,7 @@ blockgame.register_increasing_abm({
 	interval = 30,
 	chance = 10,
 	rate = function (pos, node, data)
-		local score = 100
+		local score = 20
 
 		local source_pos = pos
 		blockgame.flood_fill(pos, function (pos, distance)