diff --git a/arch-nspawn.in b/arch-nspawn.in
index e46b57ffcdc2cda2..b5fcc9d51e3768f3 100644
--- a/arch-nspawn.in
+++ b/arch-nspawn.in
@@ -10,7 +10,7 @@
 
 m4_include(lib/common.sh)
 
-CHROOT_VERSION='v3'
+CHROOT_VERSION='v4'
 
 working_dir=''
 
diff --git a/mkarchroot.in b/mkarchroot.in
index 4d8efb0d8a90f873..c4bb51a1d218a78c 100644
--- a/mkarchroot.in
+++ b/mkarchroot.in
@@ -10,7 +10,7 @@
 
 m4_include(lib/common.sh)
 
-CHROOT_VERSION='v3'
+CHROOT_VERSION='v4'
 
 working_dir=''
 
@@ -72,7 +72,7 @@ pacstrap -GMcd ${pac_conf:+-C "$pac_conf"} "$working_dir" \
   "${cache_dirs[@]/#/--cachedir=}" "$@" || die 'Failed to install all packages'
 
 printf '%s.UTF-8 UTF-8\n' en_US de_DE > "$working_dir/etc/locale.gen"
-echo 'LANG=C' > "$working_dir/etc/locale.conf"
+echo 'LANG=en_US.UTF-8' > "$working_dir/etc/locale.conf"
 echo "$CHROOT_VERSION" > "$working_dir/.arch-chroot"
 
 systemd-machine-id-setup --root="$working_dir"