diff --git a/code/modules/research/designs/autolathe_desings/autolathe_designs_construction.dm b/code/modules/research/designs/autolathe_desings/autolathe_designs_construction.dm
index 6cbcbe141a..4c1d284979 100644
--- a/code/modules/research/designs/autolathe_desings/autolathe_designs_construction.dm
+++ b/code/modules/research/designs/autolathe_desings/autolathe_designs_construction.dm
@@ -103,7 +103,7 @@
 /datum/design/rcd_ammo
 	name = "Compressed Matter Cartridge"
 	id = "rcd_ammo"
-	build_type = AUTOLATHE
+	build_type = AUTOLATHE | PROTOLATHE
 	materials = list(MAT_METAL = 12000, MAT_GLASS=8000)
 	build_path = /obj/item/rcd_ammo
 	category = list("initial","Construction","Tool Designs")