1 files changed, 3 insertions, 1 deletions
diff --git a/config.mk b/config.mk
index 16e3859..760d264 100644
--- a/config.mk
+++ b/config.mk
@@ -14,8 +14,10 @@ LDFLAGS = -nostdlib \
 		   -T link/$(TARGET_TRIPLET).ld
 
 ifeq "$(TARGET_MACHINE)" "x86_64"
-	CFLAGS += -m64 \
+	CFLAGS += -march=x86-64 \
+			  -m64 \
 			  -mno-red-zone \
+			  -mno-mmx \
 			  -mcmodel=kernel \
 			  -mfsgsbase
 endif