diff --git a/right/build/kds/blhost-unix.sh b/right/build/kds/blhost-unix.sh
index 0cb8385..a2f3964 100755
--- a/right/build/kds/blhost-unix.sh
+++ b/right/build/kds/blhost-unix.sh
@@ -14,6 +14,7 @@ if [ ! -f $usb_binding ]; then
 fi
 
 $usb_dir/jump-to-bootloader.js
+$blhost --usb 0x15a2,0x0073 flash-security-disable 0403020108070605
 $blhost --usb 0x15a2,0x0073 flash-erase-all 0
 $blhost --usb 0x15a2,0x0073 flash-image $firmware_image
 $blhost --usb 0x15a2,0x0073 reset