diff --git a/auto/config b/auto/config
index 29acdce..4419709 100755
--- a/auto/config
+++ b/auto/config
@@ -44,8 +44,9 @@ dist_reltag=""
 
 case "$SUITE" in
   byzantium)
-    dist_version="10~devel"
+    dist_version="10"
     lb_opts="$lb_opts --security true --updates true"
+    dist_reltag="~devel"
   ;;
   amber)
     dist_version="9.0"
@@ -56,7 +57,7 @@ case "$SUITE" in
     dist_version="0.0"
   ;;
 esac
-VERSION_PRETTY=$dist_version
+VERSION_FULL="${dist_version}${dist_reltag}"
 
 
 # live-build doesn't work if --parent-debian-distribution is unknown of
@@ -173,13 +174,13 @@ casper
 EOF
 
 # Configure bootloader
-sed -e s/@VERSION@/"$VERSION_PRETTY"/g config/bootloaders/splash.svg.in > config/bootloaders/splash.svg
+sed -e s/@VERSION@/"$VERSION_FULL"/g config/bootloaders/splash.svg.in > config/bootloaders/splash.svg
 mv -f config/bootloaders/splash.svg config/bootloaders/isolinux/
 
 # Update GRUB EFI menu for our flavor
 sed -e s/@FLAVOR@/"$FLAVOR"/g config/bootloaders/grub-efi.cfg.in > config/bootloaders/isolinux/grub-efi.cfg
 
-IMAGE_FILENAME=pureos-${dist_version}-${FLAVOR}_${CURRENT_DATE}
+IMAGE_FILENAME=pureos-${VERSION_FULL}-${FLAVOR}_${CURRENT_DATE}
 
 lb config noauto \
     --distribution "$SUITE" \