diff --git a/lang/update-pot.sh b/lang/update-pot.sh
index ef7b1803e..799bface8 100755
--- a/lang/update-pot.sh
+++ b/lang/update-pot.sh
@@ -1,3 +1,4 @@
 #!/bin/sh
 # Extract language data in the po subdir to keep the relative paths intact
+cp -f po/Firmware.pot po/Firmware.pot.bak
 cd po && ../lang-extract.py --no-missing -s -o Firmware.pot ../../Firmware/[a-zA-Z]*.[ch]*