diff --git a/repos/base-nova/src/kernel/nova/target.mk b/repos/base-nova/src/kernel/nova/target.mk
index 59233838e4..d52684fbe0 100644
--- a/repos/base-nova/src/kernel/nova/target.mk
+++ b/repos/base-nova/src/kernel/nova/target.mk
@@ -35,7 +35,7 @@ CC_WARN         += -Wframe-larger-than=104
 CC_OPT          += -mpreferred-stack-boundary=2 -mregparm=3
 else
 ifeq ($(filter-out $(SPECS),64bit),)
-override CC_MARCH = -m64 -msse3
+override CC_MARCH = -m64 #-msse3
 CC_WARN         += -Wframe-larger-than=1024
 CC_OPT          += -mpreferred-stack-boundary=4 -mcmodel=kernel -mno-red-zone
 else