diff --git a/components/ratgdo/binary_sensor/ratgdo_binary_sensor.cpp b/components/ratgdo/binary_sensor/ratgdo_binary_sensor.cpp
index 9444db8..abd05e0 100644
--- a/components/ratgdo/binary_sensor/ratgdo_binary_sensor.cpp
+++ b/components/ratgdo/binary_sensor/ratgdo_binary_sensor.cpp
@@ -9,19 +9,20 @@ namespace ratgdo {
 
 static const char *const TAG = "ratgdo.binary_sensor";
 
-void RATGDOBinarySensor::dump_config() {
+ class RATGDOBinarySensor {
+void dump_config() {
   LOG_BINARY_SENSOR("", "RATGDO BinarySensor", this);
 }
 
-void RATGDOBinarySensor::setup() {
+void setup() {
   this->publish_internal_state(false);
 }
-void RATGDOBinarySensor::on_door_state(esphome::ratgdo::DoorState state) {}
-void RATGDOBinarySensor::on_light_state(esphome::ratgdo::LightState state) {}
-void RATGDOBinarySensor::on_lock_state(esphome::ratgdo::LockState state) {}
-void RATGDOBinarySensor::on_motion_state(esphome::ratgdo::MotionState state) {}
-void RATGDOBinarySensor::on_obstruction_state(esphome::ratgdo::ObstructionState state) {}
-
+void on_door_state(esphome::ratgdo::DoorState state) {}
+void on_light_state(esphome::ratgdo::LightState state) {}
+void on_lock_state(esphome::ratgdo::LockState state) {}
+void on_motion_state(esphome::ratgdo::MotionState state) {}
+void on_obstruction_state(esphome::ratgdo::ObstructionState state) {}
+ }
 }  // namespace ratgdo
 }  // namespace esphome