diff --git a/rpi/hardware/light/lora_light_sensor_reader.py b/rpi/hardware/light/lora_light_sensor_reader.py
index f69d6b22..a86b61c5 100644
--- a/rpi/hardware/light/lora_light_sensor_reader.py
+++ b/rpi/hardware/light/lora_light_sensor_reader.py
@@ -12,7 +12,7 @@ class LoraLightSensorReader(SerialReader):
         super().__init__(port, baudrate)
         self.json_pattern = re.compile(r'\{.*}')
 
-    def __read(self):
+    def _read(self):
         while self._run_event.is_set():
             line = self.serial.readline().decode('utf-8', errors='ignore').strip()
             if not line: