diff --git a/mods/ITEMS/mcl_fire/init.lua b/mods/ITEMS/mcl_fire/init.lua
index 8ef03fc7..05091554 100644
--- a/mods/ITEMS/mcl_fire/init.lua
+++ b/mods/ITEMS/mcl_fire/init.lua
@@ -47,7 +47,7 @@ local function has_flammable(pos)
 	for k,v in pairs(adjacents) do
 		local p=vector.add(pos,v)
 		local n=minetest.get_node_or_nil(p)
-		if n and minetest.get_item_group(n.name, "flammable") > 0 then
+		if n and minetest.get_item_group(n.name, "flammable") ~= 0 then
 			return p
 		end
 	end