diff --git a/dirt.lua b/dirt.lua
index 228e80b4d34d0204b309f0206ebd6955ed853509..91ae1a228290dc4c054979fac26d674c5c42aa5b 100644
--- a/dirt.lua
+++ b/dirt.lua
@@ -292,7 +292,7 @@ for _, ab in pairs(minetest.registered_abms) do
 	-- find dirt to grass abm and replace with spread function
 	if label == "Grass spread"
 	or (node1 == "default:dirt"
-	and neigh == "default:dirt_with_grass") then
+	and neigh == "group:grass") then
 
 		--ab.interval = 2
 		--ab.chance = 1