diff --git a/grocy/rootfs/etc/s6-overlay/s6-rc.d/php-fpm/run b/grocy/rootfs/etc/s6-overlay/s6-rc.d/php-fpm/run
index c3917d5..6d27470 100755
--- a/grocy/rootfs/etc/s6-overlay/s6-rc.d/php-fpm/run
+++ b/grocy/rootfs/etc/s6-overlay/s6-rc.d/php-fpm/run
@@ -101,7 +101,7 @@ fi
 
 if bashio::config.has_value 'tweaks.label_printer_webhook'; then
     label_printer_webhook=$(bashio::config 'tweaks.label_printer_webhook')
-    export GROCY_MEAL_PLAN_FIRST_DAY_OF_WEEK=${label_printer_webhook}
+    export LABEL_PRINTER_WEBHOOK=${label_printer_webhook}
 fi
 
 if bashio::config.false 'tweaks.label_printer_run_server'; then