diff --git a/src/service/device_io_service_mock.cpp b/src/service/device_io_service_mock.cpp
index 574d7ed..ffc75d9 100644
--- a/src/service/device_io_service_mock.cpp
+++ b/src/service/device_io_service_mock.cpp
@@ -54,6 +54,7 @@ DeviceIOService::env_sensor_state_t DeviceIOServiceMock::getEnvSensorState() {
   state.atmospheric_pressure = 9973;
   state.tvoc = 9973;
   state.hcho = 9973;
+  state.light_intensity = 9973;
   return state;
 }
 void DeviceIOServiceMock::fanGetState(int id, float& power, uint16_t& error) {