diff --git a/python/voltage.py b/python/voltage.py
index 2afd2f2a..dc00ff81 100644
--- a/python/voltage.py
+++ b/python/voltage.py
@@ -29,8 +29,8 @@ if __name__ == "__main__":
 #   print("ina219 test")
 
 # optional : change configuration to use 32 samples averaging for both bus voltage and shunt voltage
-    ina219.bus_adc_resolution = ADCResolution.ADCRES_12BIT_1S   // 32S
-    ina219.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_1S     // 32S
+    ina219.bus_adc_resolution = ADCResolution.ADCRES_12BIT_1S   # 32S
+    ina219.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_1S     # 32S
 # optional : change voltage range to 16V
     ina219.bus_voltage_range = BusVoltageRange.RANGE_16V