diff --git a/mods/ITEMS/REDSTONE/mesecons_torch/init.lua b/mods/ITEMS/REDSTONE/mesecons_torch/init.lua
index 9f188a2f65..14b464c14d 100644
--- a/mods/ITEMS/REDSTONE/mesecons_torch/init.lua
+++ b/mods/ITEMS/REDSTONE/mesecons_torch/init.lua
@@ -74,7 +74,7 @@ minetest.register_node("mesecons_torch:redstoneblock", {
 	description = "Block of Redstone",
 	tiles = {"redstone_redstone_block.png"},
 	stack_max = 64,
-	groups = {cracky=1},
+	groups = {pickaxey=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
 	is_ground_content = false,
 	mesecons = {receptor = {
@@ -82,6 +82,7 @@ minetest.register_node("mesecons_torch:redstoneblock", {
 		rules = torch_get_output_rules
 	}},
 	mcl_blast_resistance = 30,
+	mcl_hardness = 5,
 })
 
 minetest.register_craft({
diff --git a/mods/ITEMS/mcl_colorblocks/init.lua b/mods/ITEMS/mcl_colorblocks/init.lua
index 962ee57765..6bcb40e3d5 100644
--- a/mods/ITEMS/mcl_colorblocks/init.lua
+++ b/mods/ITEMS/mcl_colorblocks/init.lua
@@ -87,7 +87,7 @@ for _, row in ipairs(block.dyes) do
 		minetest.register_node("mcl_colorblocks:glazed_terracotta_"..name, {
 			description = desc.." Glazed Terracotta",
 			tiles = texes,
-			groups = {handy=1,pickaxey=1, cracky=3,glazed_terracotta=1,building_block=1},
+			groups = {handy=1,pickaxey=1, glazed_terracotta=1,building_block=1},
 			paramtype2 = "facedir",
 			stack_max = 64,
 			is_ground_content = false,
diff --git a/mods/ITEMS/mcl_walls/API.md b/mods/ITEMS/mcl_walls/API.md
index 45e82d5645..9efb8ce2c1 100644
--- a/mods/ITEMS/mcl_walls/API.md
+++ b/mods/ITEMS/mcl_walls/API.md
@@ -23,7 +23,7 @@ If `craft_material` is not `nil` it also adds a crafting recipe of the following
 * `craft_material`: Item to be used in the crafting recipe. If `nil`, no crafting recipe will be added
 * `tiles`: Wall textures table, same syntax as for `minetest.register_node`
 * `inventory_image`: Inventory image (optional, default is an ugly 3D image)
-* `groups`: Base group memberships (optional, default is `{cracky=3}`)
+* `groups`: Base group memberships (optional, default is `{pickaxey=1}`)
 * `sounds`: Sound table (optional, by default default uses stone sounds)
 
 The following groups will automatically be added to the nodes (where applicable), you do not need to add them