diff --git a/arch/x86/config.mk b/arch/x86/config.mk
index 576501e..8151e47 100644
--- a/arch/x86/config.mk
+++ b/arch/x86/config.mk
@@ -24,6 +24,7 @@ ifeq ($(IS_32BIT),y)
 PLATFORM_CPPFLAGS += -march=i386 -m32
 else
 PLATFORM_CPPFLAGS += $(if $(CONFIG_SPL_BUILD),,-fpic) -fno-common -march=core2 -m64
+PLATFORM_CPPFLAGS += -mno-mmx -mno-sse
 endif
 
 PLATFORM_RELFLAGS += -fdata-sections -ffunction-sections -fvisibility=hidden