diff --git a/technic/machines/LV/compressor.lua b/technic/machines/LV/compressor.lua
index b9e4919..c0e590f 100644
--- a/technic/machines/LV/compressor.lua
+++ b/technic/machines/LV/compressor.lua
@@ -3,7 +3,7 @@ technic.compressor_recipes = {}
 
 local S = technic.getter
 
-if unified_inventory.register_craft_type then
+if unified_inventory and unified_inventory.register_craft_type then
 	unified_inventory.register_craft_type("compressing", {
 		description = S("Compressing"),
 		height = 1,
diff --git a/technic/machines/LV/extractor.lua b/technic/machines/LV/extractor.lua
index f559ae0..6a620c1 100644
--- a/technic/machines/LV/extractor.lua
+++ b/technic/machines/LV/extractor.lua
@@ -3,7 +3,7 @@ technic.extractor_recipes ={}
 
 local S = technic.getter
 
-if unified_inventory.register_craft_type then
+if unified_inventory and unified_inventory.register_craft_type then
 	unified_inventory.register_craft_type("extracting", {
 		description = S("Extracting"),
 		height = 1,
diff --git a/technic/machines/register/alloy_furnace.lua b/technic/machines/register/alloy_furnace.lua
index 6dcca71..ebf5eab 100644
--- a/technic/machines/register/alloy_furnace.lua
+++ b/technic/machines/register/alloy_furnace.lua
@@ -1,7 +1,7 @@
 
 local S = technic.getter
 
-if unified_inventory.register_craft_type then
+if unified_inventory and unified_inventory.register_craft_type then
 	unified_inventory.register_craft_type("alloy", {
 		description = S("Alloy cooking"),
 		height = 2,
diff --git a/technic/machines/register/grinder_recipes.lua b/technic/machines/register/grinder_recipes.lua
index cab83ac..d81d421 100644
--- a/technic/machines/register/grinder_recipes.lua
+++ b/technic/machines/register/grinder_recipes.lua
@@ -1,7 +1,7 @@
 
 local S = technic.getter
 
-if unified_inventory.register_craft_type then
+if unified_inventory and unified_inventory.register_craft_type then
 	unified_inventory.register_craft_type("grinding", {
 		description = S("Grinding"),
 		height = 1,