diff --git a/dkppc/rules/gamecube_rules b/dkppc/rules/gamecube_rules
index 673497e..afdea81 100644
--- a/dkppc/rules/gamecube_rules
+++ b/dkppc/rules/gamecube_rules
@@ -7,6 +7,8 @@ export	LIBOGC_LIB	:=	$(DEVKITPRO)/libogc/lib/cube
 
 include $(DEVKITPPC)/base_rules
 
+MACHDEP =  -DGEKKO -mogc -mcpu=750 -meabi -mhard-float
+
 %.dol: %.elf
 	@echo output ... $(notdir $@)
 	@$(OBJCOPY)  -O binary $< $@
diff --git a/dkppc/rules/wii_rules b/dkppc/rules/wii_rules
index 631aa4d..e8c0bc6 100644
--- a/dkppc/rules/wii_rules
+++ b/dkppc/rules/wii_rules
@@ -5,6 +5,8 @@ endif
 export	LIBOGC_INC	:=	$(DEVKITPRO)/libogc/include
 export	LIBOGC_LIB	:=	$(DEVKITPRO)/libogc/lib/wii
 
+MACHDEP =  -DGEKKO -mrvl -mcpu=750 -meabi -mhard-float
+
 include $(DEVKITPPC)/base_rules
 
 %.dol: %.elf