diff --git a/mods/fire/init.lua b/mods/fire/init.lua
index c6f3d47..15f7156 100644
--- a/mods/fire/init.lua
+++ b/mods/fire/init.lua
@@ -81,7 +81,7 @@ minetest.register_tool("fire:flint_and_steel", {
 			itemstack:add_wear(1000)
 			local node_under = minetest.get_node(pt.under).name
 
-			if minetest.get_node_group(node_under, "flammable") >= 1 then
+			if minetest.get_item_group(node_under, "flammable") >= 1 then
 				if not minetest.is_protected(pt.above, player_name) then
 					minetest.set_node(pt.above, {name = "fire:basic_flame"})
 				else