diff --git a/scripts/cutest/install-cutest.sh b/scripts/cutest/install-cutest.sh
index 09a0f64c7f..c5f1ab1165 100755
--- a/scripts/cutest/install-cutest.sh
+++ b/scripts/cutest/install-cutest.sh
@@ -39,6 +39,8 @@ source $ARCH/system.$OS
 source $ARCH/$COMPILER
 source $ARCH/$CCOMPILER
 
+OPTIMIZATION='-O3 -march=skylake'
+
 yesno_default_no() {
     echo "$1 (y/N)? "
     return 0