diff --git a/scripts/backup.sh b/scripts/backup.sh
index 3ba9fd8b..9c58dbd5 100755
--- a/scripts/backup.sh
+++ b/scripts/backup.sh
@@ -48,10 +48,10 @@ FILES_TO_BACKUP="/root/brain.nn \
   /home/pi/.bashrc \
   /home/pi/.profile"
 
-ping -w 3 -c 1 "${UNIT_HOSTNAME}" > /dev/null 2>&1 || {
+ping -c 1 "${UNIT_HOSTNAME}" > /dev/null 2>&1 || {
   echo "@ unit ${UNIT_HOSTNAME} can't be reached, make sure it's connected and a static IP assigned to the USB interface."
   exit 1
 }
 
 echo "@ backing up $UNIT_HOSTNAME to $OUTPUT ..."
-ssh "${USERNAME}@${UNIT_HOSTNAME}" "sudo find ${FILES_TO_BACKUP[@]} -print0 | xargs -0 sudo tar cv" | gzip -9 > "$OUTPUT"
+ssh "${USERNAME}@${UNIT_HOSTNAME}" "sudo find ${FILES_TO_BACKUP} -print0 | xargs -0 sudo tar cv" | gzip -9 > "$OUTPUT"
diff --git a/scripts/restore.sh b/scripts/restore.sh
index 6303f886..551094e9 100755
--- a/scripts/restore.sh
+++ b/scripts/restore.sh
@@ -44,7 +44,7 @@ fi
 # username to use for ssh
 USERNAME=${USERNAME:-pi}
 
-ping -w 3 -c 1 "${UNIT_HOSTNAME}" > /dev/null 2>&1 || {
+ping -c 1 "${UNIT_HOSTNAME}" > /dev/null 2>&1 || {
   echo "@ unit ${UNIT_HOSTNAME} can't be reached, make sure it's connected and a static IP assigned to the USB interface."
   exit 1
 }