diff --git a/basic_machines/forceload.lua b/basic_machines/forceload.lua
index 80ae13b..3419b7f 100644
--- a/basic_machines/forceload.lua
+++ b/basic_machines/forceload.lua
@@ -193,7 +193,7 @@ if techage.max_num_forceload_blocks > 0 then
 		output = "techage:forceload",
 		recipe = {
 			{"group:wood", "", "group:wood"},
-			{"", "basic_materials:energy_crystal_simple", ""},
+			{"default:mese_crystal_fragment", "techage:baborium_lump", "default:mese_crystal_fragment"},
 			{"group:wood", "techage:iron_ingot", "group:wood"},
 		},
 	})
diff --git a/basis/command.lua b/basis/command.lua
index 791f689..5c7f7aa 100644
--- a/basis/command.lua
+++ b/basis/command.lua
@@ -409,7 +409,7 @@ end
 -- Put the given stack into the given ItemList.
 -- Function returns false if ItemList is full.
 function techage.put_items(inv, listname, stack)
-	if inv:room_for_item(listname, stack) then
+	if inv and inv.room_for_item and inv:room_for_item(listname, stack) then
 		inv:add_item(listname, stack)
 		return true
 	end
diff --git a/mod.conf b/mod.conf
index 90496f6..f85cd5e 100644
--- a/mod.conf
+++ b/mod.conf
@@ -1,4 +1,4 @@
 name = techage
 depends = default,tubelib2,basic_materials,bucket
-optional_depends = unified_inventory,wielded_light,signs_bot
+optional_depends = unified_inventory,wielded_light
 description = Hello World!
\ No newline at end of file
diff --git a/tools/repairkit.lua b/tools/repairkit.lua
index 0209ef4..ac3936e 100644
--- a/tools/repairkit.lua
+++ b/tools/repairkit.lua
@@ -31,7 +31,7 @@ local function repair_node(itemstack, user, pointed_thing)
 	if pos then
 		if techage.repair_node(pos) then
 			minetest.chat_send_player(user:get_player_name(), "[TechAge] Node repaired")
-			itemstack:take_item()
+			itemstack:add_wear(13108)
 			return itemstack
 		end
 	end
@@ -54,7 +54,7 @@ local function read_state(itemstack, user, pointed_thing)
 	end
 end
 
-minetest.register_craftitem("techage:repairkit", {
+minetest.register_tool("techage:repairkit", {
 	description = "TechAge Repair Kit",
 	inventory_image = "techage_repairkit.png",
 	wield_image = "techage_repairkit.png^[transformR270",