diff --git a/mods/ITEMS/mcl_brewing/init.lua b/mods/ITEMS/mcl_brewing/init.lua
index 38f81fa36..2ff2a806f 100644
--- a/mods/ITEMS/mcl_brewing/init.lua
+++ b/mods/ITEMS/mcl_brewing/init.lua
@@ -959,7 +959,7 @@ minetest.register_craft({
 	output = "mcl_brewing:stand_000",
 	recipe = {
 		{ "", "mcl_mobitems:blaze_rod", "" },
-		{ "mcl_core:cobble", "mcl_core:cobble", "mcl_core:cobble" },
+		{ "group:cobble", "group:cobble", "group:cobble" },
 	}
 })
 
diff --git a/mods/ITEMS/mcl_farming/hoes.lua b/mods/ITEMS/mcl_farming/hoes.lua
index 28ad938f4..8d9aa61ce 100644
--- a/mods/ITEMS/mcl_farming/hoes.lua
+++ b/mods/ITEMS/mcl_farming/hoes.lua
@@ -129,7 +129,7 @@ minetest.register_tool("mcl_farming:hoe_stone", {
 minetest.register_craft({
 	output = "mcl_farming:hoe_stone",
 	recipe = {
-		{"mcl_core:cobble", "mcl_core:cobble"},
+		{"group:cobble", "group:cobble"},
 		{"", "mcl_core:stick"},
 		{"", "mcl_core:stick"}
 	}
@@ -137,7 +137,7 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "mcl_farming:hoe_stone",
 	recipe = {
-		{"mcl_core:cobble", "mcl_core:cobble"},
+		{"group:cobble", "group:cobble"},
 		{"mcl_core:stick", ""},
 		{"mcl_core:stick", ""}
 	}
diff --git a/mods/ITEMS/mcl_furnaces/init.lua b/mods/ITEMS/mcl_furnaces/init.lua
index 9f836d161..59cfe7858 100644
--- a/mods/ITEMS/mcl_furnaces/init.lua
+++ b/mods/ITEMS/mcl_furnaces/init.lua
@@ -574,9 +574,9 @@ minetest.register_node("mcl_furnaces:furnace_active", {
 minetest.register_craft({
 	output = "mcl_furnaces:furnace",
 	recipe = {
-		{ "mcl_core:cobble", "mcl_core:cobble", "mcl_core:cobble" },
-		{ "mcl_core:cobble", "", "mcl_core:cobble" },
-		{ "mcl_core:cobble", "mcl_core:cobble", "mcl_core:cobble" },
+		{ "group:cobble", "group:cobble", "group:cobble" },
+		{ "group:cobble", "", "group:cobble" },
+		{ "group:cobble", "group:cobble", "group:cobble" },
 	}
 })
 
diff --git a/mods/ITEMS/mcl_tools/crafting.lua b/mods/ITEMS/mcl_tools/crafting.lua
index 636cb6660..07032b184 100644
--- a/mods/ITEMS/mcl_tools/crafting.lua
+++ b/mods/ITEMS/mcl_tools/crafting.lua
@@ -10,7 +10,7 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "mcl_tools:pick_stone",
 	recipe = {
-		{"mcl_core:cobble", "mcl_core:cobble", "mcl_core:cobble"},
+		{"group:cobble", "group:cobble", "group:cobble"},
 		{"", "mcl_core:stick", ""},
 		{"", "mcl_core:stick", ""},
 	}
@@ -55,7 +55,7 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "mcl_tools:shovel_stone",
 	recipe = {
-		{"mcl_core:cobble"},
+		{"group:cobble"},
 		{"mcl_core:stick"},
 		{"mcl_core:stick"},
 	}
@@ -108,16 +108,16 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "mcl_tools:axe_stone",
 	recipe = {
-		{"mcl_core:cobble", "mcl_core:cobble"},
-		{"mcl_core:cobble", "mcl_core:stick"},
+		{"group:cobble", "group:cobble"},
+		{"group:cobble", "mcl_core:stick"},
 		{"", "mcl_core:stick"},
 	}
 })
 minetest.register_craft({
 	output = "mcl_tools:axe_stone",
 	recipe = {
-		{"mcl_core:cobble", "mcl_core:cobble"},
-		{"mcl_core:stick", "mcl_core:cobble"},
+		{"group:cobble", "group:cobble"},
+		{"mcl_core:stick", "group:cobble"},
 		{"mcl_core:stick", ""},
 	}
 })
@@ -185,8 +185,8 @@ minetest.register_craft({
 minetest.register_craft({
 	output = "mcl_tools:sword_stone",
 	recipe = {
-		{"mcl_core:cobble"},
-		{"mcl_core:cobble"},
+		{"group:cobble"},
+		{"group:cobble"},
 		{"mcl_core:stick"},
 	}
 })