diff --git a/code/game/machinery/machine_frame.dm b/code/game/machinery/machine_frame.dm
index 212cea58a96..c572b9c10b3 100644
--- a/code/game/machinery/machine_frame.dm
+++ b/code/game/machinery/machine_frame.dm
@@ -495,12 +495,11 @@ to destroy them and players will be able to make replacements.
 	icon_state = "engineering"
 	build_path = /obj/machinery/atmospherics/reactor_chamber
 	origin_tech = "engineering=2"
-	materials = list(MAT_GLASS = 2000)
+	materials = list(MAT_GLASS = 2000, MAT_PLASMA = 4000, MAT_TITANIUM = 4000)
 	req_components = list(
 		/obj/item/stack/cable_coil = 5,
 		/obj/item/stock_parts/manipulator = 1,
 		/obj/item/stack/sheet/metal = 2,
-		/obj/item/stack/sheet/mineral/plastitanium = 2,
 	)
 
 /obj/item/circuitboard/recharger
diff --git a/code/modules/power/engines/fission/rod_chamber.dm b/code/modules/power/engines/fission/rod_chamber.dm
index df8435da78c..95c0821f72f 100644
--- a/code/modules/power/engines/fission/rod_chamber.dm
+++ b/code/modules/power/engines/fission/rod_chamber.dm
@@ -52,7 +52,6 @@
 	component_parts = list()
 	component_parts += new /obj/item/circuitboard/machine/reactor_chamber(src)
 	component_parts += new /obj/item/stock_parts/manipulator(src)
-	component_parts += new /obj/item/stack/sheet/mineral/plastitanium(src, 2)
 	component_parts += new /obj/item/stack/sheet/metal(src, 2)
 	component_parts += new /obj/item/stack/cable_coil(src, 5)
 	RefreshParts()
diff --git a/code/modules/research/designs/power_designs.dm b/code/modules/research/designs/power_designs.dm
index ec516ad8448..78bce00e1c3 100644
--- a/code/modules/research/designs/power_designs.dm
+++ b/code/modules/research/designs/power_designs.dm
@@ -153,7 +153,7 @@
 	id = "reactor_chamber"
 	req_tech = list("programming" = 4, "materials" = 4, "magnets" = 4, "plasmatech" = 3)
 	build_type = IMPRINTER
-	materials = list(MAT_GLASS = 2000)
+	materials = list(MAT_GLASS = 2000, MAT_PLASMA = 4000, MAT_TITANIUM = 4000)
 	build_path = /obj/item/circuitboard/machine/reactor_chamber
 	category = list("Power", "Engineering Machinery", "Misc")