diff --git a/openwrt/viwib-1-firmware-upgrade.sh b/openwrt/viwib-1-firmware-upgrade.sh
index c489062..dbc73a7 100755
--- a/openwrt/viwib-1-firmware-upgrade.sh
+++ b/openwrt/viwib-1-firmware-upgrade.sh
@@ -35,7 +35,7 @@ else
     scp_ip="$viwib_ip"
 fi
 
-scp ${filename} root@${scp_ip}:/tmp
+scp -O ${filename} root@${scp_ip}:/tmp
 ssh root@${viwib_ip} "sysupgrade -n /tmp/*.bin"
 
 # It still pings for some time - wait for the reboot to happen