diff --git a/firmware/config/boards/microrusefi/board_configuration.cpp b/firmware/config/boards/microrusefi/board_configuration.cpp
index 02d51d1149..300a911dfd 100644
--- a/firmware/config/boards/microrusefi/board_configuration.cpp
+++ b/firmware/config/boards/microrusefi/board_configuration.cpp
@@ -70,7 +70,7 @@ static void setupVbatt() {
 
 	// set vbatt_divider 8.16
 	// R139=39k high side/R141=10k low side multiplied by above analogInputDividerCoefficient = 8.166666f
-	engineConfiguration->vbattDividerCoeff = (49.0f / 10.0f) * engineConfiguration->analogInputDividerCoefficient;
+	engineConfiguration->vbattDividerCoeff = (49.0f / 10.0f);
 	engineConfiguration->vbattAdcChannel = EFI_ADC_11;
 
 	engineConfiguration->adcVcc = 3.29f;