diff --git a/.test/esphome_advanced_climate_heat_customizations.yaml b/.test/esphome_advanced_climate_heat_customizations.yaml
index a42eee4..201f11f 100644
--- a/.test/esphome_advanced_climate_heat_customizations.yaml
+++ b/.test/esphome_advanced_climate_heat_customizations.yaml
@@ -3,6 +3,7 @@ substitutions:
   device_name: nspanel
   wifi_ssid: "nspanel"
   wifi_password: "NSPanel_HA_Blueprint"
+  nextion_blank_url: "http://homeassistant.local:8123/local/nspanel_blank.tft"
 
 packages:
   core_package: !include ../nspanel_esphome.yaml  # Core package