diff --git a/code/game/mecha/mech_prosthetics.dm b/code/game/mecha/mech_prosthetics.dm
index ac75223887f..5d6f90dbd4e 100644
--- a/code/game/mecha/mech_prosthetics.dm
+++ b/code/game/mecha/mech_prosthetics.dm
@@ -29,6 +29,8 @@
 		MAT_SILVER = 0,
 		MAT_LEAD = 0,
 		MAT_OSMIUM = 0,
+		MAT_GOLD = 0,
+		MAT_PLATINUM = 0,
 		MAT_DIAMOND = 0,
 		MAT_DURASTEEL = 0,
 		MAT_PHORON = 0,