diff --git a/code/game/mecha/mech_fabricator.dm b/code/game/mecha/mech_fabricator.dm
index 1b0503a40a7..08963c6d834 100644
--- a/code/game/mecha/mech_fabricator.dm
+++ b/code/game/mecha/mech_fabricator.dm
@@ -220,7 +220,7 @@
 		return
 
 	proc/check_resources(var/obj/item/mecha_parts/part)
-		if(istype(part, /obj/item/mecha_parts/part))
+		if(istype(part, /obj/item/robot_parts) || istype(part, /obj/item/mecha_parts))
 			for(var/resource in part.construction_cost)
 				if(resource in src.resources)
 					if(src.resources[resource] < get_resource_cost_w_coeff(part,resource))