diff --git a/mods/ITEMS/mcl_blackstone/init.lua b/mods/ITEMS/mcl_blackstone/init.lua
index 66b743e76..9db9b02d2 100644
--- a/mods/ITEMS/mcl_blackstone/init.lua
+++ b/mods/ITEMS/mcl_blackstone/init.lua
@@ -202,7 +202,12 @@ mcl_stairs.register_stair_and_slab_simple("blackstone_brick_polished", "mcl_blac
 mcl_walls.register_wall(
 	"mcl_blackstone:wall",
 	S("Blackstone Wall"),
-	"mcl_blackstone:blackstone")
+	"mcl_blackstone:blackstone",
+	nil,
+	nil,
+	nil,
+	minetest.registered_nodes["mcl_blackstone:blackstone"]._mcl_hardness,
+	minetest.registered_nodes["mcl_blackstone:blackstone"]._mcl_blast_resistance)
 
 --lavacooling