diff --git a/Source/HBIOS/Makefile b/Source/HBIOS/Makefile
index 63d5912c..329f91dc 100644
--- a/Source/HBIOS/Makefile
+++ b/Source/HBIOS/Makefile
@@ -13,11 +13,11 @@ OBJECTS += RCZ80_std.rom
 #OBJECTS += RCZ80_wiz.rom
 OBJECTS += SBC_simh.rom
 OBJECTS += SBC_std.rom 
-#OBJECTS += SCZ180_126.rom
-#OBJECTS += SCZ180_130.rom
-#OBJECTS += UNA_std.rom
-#OBJECTS += ZETA_std.rom
-#OBJECTS += ZETA2_std.rom
+OBJECTS += SCZ180_126.rom
+OBJECTS += SCZ180_130.rom
+OBJECTS += UNA_std.rom
+OBJECTS += ZETA_std.rom
+OBJECTS += ZETA2_std.rom
 else
 OBJECTS += ZETA_std.rom
 OBJECTS += ZETA2_std.rom