diff --git a/overlay/usr/local/bin/veilor-installer b/overlay/usr/local/bin/veilor-installer
index 9f75049..feab14c 100644
--- a/overlay/usr/local/bin/veilor-installer
+++ b/overlay/usr/local/bin/veilor-installer
@@ -524,6 +524,11 @@ This will take 10-30 minutes.
 Logs: /var/log/veilor-installer.log + /tmp/anaconda.log"
     sleep 1
     # Hand off to anaconda. --kickstart runs unattended.
+    # LANG / LC_ALL must be set — anaconda's keyboard.activate_keyboard()
+    # raises AnacondaError: 'LANG' if missing. tty1 inherits no locale by
+    # default. Use the locale the user picked (or fall back to en_GB).
+    export LANG="${SEL_LOCALE:-en_GB.UTF-8}"
+    export LC_ALL="$LANG"
     if anaconda --kickstart=/run/install/veilor-generated.ks; then
         prompt_message "Install complete. System will reboot.
 Remove the install media after shutdown."