diff --git a/Devterm-CM3-ubuntu-server-image.md b/Devterm-CM3-ubuntu-server-image.md
index 73fdce1..bc62556 100644
--- a/Devterm-CM3-ubuntu-server-image.md
+++ b/Devterm-CM3-ubuntu-server-image.md
@@ -61,7 +61,7 @@ EOF'
 
 `sudo apt-get install tasksel`
 
-`sudo mv /lib/firmware/brcm/brcmfmac43456-sdio.raspberrypi,400.txt /lib/firmware/brcm/brcmfmac43456-sdio.txt`
+`sudo cp -f /lib/firmware/brcm/brcmfmac43456-sdio.raspberrypi,400.txt /lib/firmware/brcm/brcmfmac43456-sdio.txt`
 
 ### Outside chroot