diff --git a/mods/bg_tree/decompose.lua b/mods/bg_tree/decompose.lua
index f7e7e2c..dbb1de8 100644
--- a/mods/bg_tree/decompose.lua
+++ b/mods/bg_tree/decompose.lua
@@ -13,7 +13,7 @@ blockgame.register_increasing_abm({
 	id = modname .. ":begin_decompose",
 	label = "decompose leaves",
 	nodenames = {leaves},
-	neighbors = {"group:dirty"},
+	neighbors = {"group:dirty", leaves_decomposing},
 	interval = 15,
 	chance = 4,
 	rate = function (pos, node, data)