diff --git a/scripts/configure-hypervisor.sh b/scripts/configure-hypervisor.sh
index 0be7fdc696..d419c0e43b 100755
--- a/scripts/configure-hypervisor.sh
+++ b/scripts/configure-hypervisor.sh
@@ -304,7 +304,7 @@ generate_qemu_options() {
 	# implicitly enabled in Fedora 27).
 	qemu_options+=(size:--disable-linux-aio)
 
-	if [[ "${qemu_version_major}" -ge 4 || ( "${qemu_version_major}" -ge 3  &&  "${qemu_version_minor}" -ge 1 ) ]]; then
+	if [[ "${qemu_version_major}" -ge 4 || ( "${qemu_version_major}" -eq 3  &&  "${qemu_version_minor}" -ge 1 ) ]]; then
 		# Disable libpmem, vNVDIMM backend (aka rootfs image) shouldn't be modifed
 		# by the guest
 		qemu_options+=(security:--disable-libpmem)
@@ -361,9 +361,10 @@ generate_qemu_options() {
 	qemu_options+=(functionality:--enable-attr)
 	qemu_options+=(functionality:--enable-cap-ng)
 
-	# AVX2 is enabled by default, make sure it's on
-	if [[ "${qemu_version_major}" -ge 4 || ( "${qemu_version_major}" -ge 3  &&  "${qemu_version_minor}" -ge 1 ) ]]; then
+	if [[ "${qemu_version_major}" -ge 4 || ( "${qemu_version_major}" -eq 3  &&  "${qemu_version_minor}" -ge 1 ) ]]; then
+		# AVX2 is enabled by default, make sure it's on.
 		qemu_options+=(speed:--enable-avx2)
+		# Enable libc malloc_trim() for memory optimization.
 		qemu_options+=(speed:--enable-malloc-trim)
 	fi