diff --git a/autotest.sh b/autotest.sh
index c23d50ee39..08fbe023ab 100755
--- a/autotest.sh
+++ b/autotest.sh
@@ -50,7 +50,7 @@ if [ $(uname -s) = Linux ]; then
 	sleep 10
 
 	# Delete all partitions on NVMe devices
-	devs=`lsblk -l -o NAME | grep nvme | grep -v p`
+	devs=`lsblk -l -o NAME | grep nvme | grep -v p` || true
 	for dev in $devs; do
 		parted -s /dev/$dev mklabel msdos
 	done