diff --git a/components/sensor/tempSensor_max31865.py b/components/sensor/tempSensor_max31865.py
index a3de418..bbd71ad 100755
--- a/components/sensor/tempSensor_max31865.py
+++ b/components/sensor/tempSensor_max31865.py
@@ -33,6 +33,7 @@ class TempSensor_max31865(ATemperatureSensor):
 				break
 			time.sleep(0.01)
 
+		digits = 0
 		msb = self.read_reg(0x01)
 		lsb = self.read_reg(0x02)
 		if lsb & 0x01 == 0x00: