diff --git a/radio/src/targets/horus/board_horus.cpp b/radio/src/targets/horus/board_horus.cpp
index f930c45bf..5cbaf2d12 100644
--- a/radio/src/targets/horus/board_horus.cpp
+++ b/radio/src/targets/horus/board_horus.cpp
@@ -270,5 +270,5 @@ void checkTrainerSettings()
 uint16_t getBatteryVoltage()
 {
   int32_t instant_vbat = anaIn(TX_VOLTAGE);  // using filtered ADC value on purpose
-  return (uint16_t)((instant_vbat * (1000 + g_eeGeneral.txVoltageCalibration) ) / 1637);
+  return (uint16_t)((instant_vbat * (1000 + g_eeGeneral.txVoltageCalibration) ) / 1629);
 }