diff --git a/Create-DevTerm-CM3-OS-image-from-scratch.md b/Create-DevTerm-CM3-OS-image-from-scratch.md
index 111fe0a..44bf9a6 100644
--- a/Create-DevTerm-CM3-OS-image-from-scratch.md
+++ b/Create-DevTerm-CM3-OS-image-from-scratch.md
@@ -10,7 +10,7 @@ wget https://downloads.raspberrypi.org/raspios_full_armhf/images/raspios_full_ar
 
 unzip 2021-05-07-raspios-buster-armhf-full.zip
 
-sudo losetup -P /dev/loop0 2021-05-07-raspios-buster-armhf-full.img
+sudo losetup --show -f -P 2021-05-07-raspios-buster-armhf-full.img #assume loop0
 sudo mount /dev/loop0p2 /mnt/p2
 sudo mount /dev/loop0p1 /mnt/p2/boot