diff --git a/firmware/src/board.rs b/firmware/src/board.rs
index 3843636..ae5d256 100644
--- a/firmware/src/board.rs
+++ b/firmware/src/board.rs
@@ -33,7 +33,7 @@ pub const AV_ADC_GAIN: f32 = 6.792703150912105;
 pub const FV_ADC_GAIN: f32 = 501.83449105726623;
 pub const FBI_ADC_GAIN: f32 = 1333.3333333333333;
 pub const FBI_ADC_OFFSET: f32 = 96.0;
-pub const FD_ADC_GAIN: f32 = 4170.212765957447;
+pub const FD_ADC_GAIN: f32 = 3111.1111111111104;
 pub const FD_ADC_OFFSET: f32 = 96.0;
 pub const FBV_ADC_GAIN: f32 = 49.13796058269066;
 pub const FBV_PWM_GAIN: f32 = 0.5730803571428571;