diff --git a/setup-auto-updates.sh b/setup-auto-updates.sh
index 0ec8090..e610d1d 100644
--- a/setup-auto-updates.sh
+++ b/setup-auto-updates.sh
@@ -246,7 +246,7 @@ main() {
 
   show_status
   echo
-  echo "[OK] Unattended updates configured (%s updates); reboot at %s if needed." "$UPDATE_SCOPE" "$REBOOT_TIME"
+  echo "[OK] Unattended updates configured (${UPDATE_SCOPE} updates); reboot at ${REBOOT_TIME} if needed."
 
   # Offer to remove the script itself
   prompt_self_delete