diff --git a/mods/fire/init.lua b/mods/fire/init.lua
index d8eab19f..3a84c824 100644
--- a/mods/fire/init.lua
+++ b/mods/fire/init.lua
@@ -170,10 +170,10 @@ minetest.register_craft({
 })
 
 
--- Override coalblock to enable permanent flame above
+-- Override coal_block to enable permanent flame above
 -- Coalblock is non-flammable to avoid unwanted basic_flame nodes
 
-minetest.override_item("default:coalblock", {
+minetest.override_item("default:coal_block", {
 	after_destruct = function(pos, oldnode)
 		pos.y = pos.y + 1
 		if minetest.get_node(pos).name == "fire:permanent_flame" then