diff --git a/firmware/config/boards/proteus/mapping.yaml b/firmware/config/boards/proteus/mapping.yaml
index d7502ff062..eda337cf8e 100644
--- a/firmware/config/boards/proteus/mapping.yaml
+++ b/firmware/config/boards/proteus/mapping.yaml
@@ -89,9 +89,9 @@ analog_inputs:
   EFI_ADC_6: "Analog Volt 11"
   # PA7
   EFI_ADC_7: "Battery Sense"
-  # CLT = Analog Temp 3 = PB0
+  # CLT, PB0, pin #20
   EFI_ADC_8: "Analog Temp 3"
-  # PB1
+  # PB1, pin #31
   EFI_ADC_9: "Analog Temp 4"
   # MAP = Analog volt 1 = PC0
   EFI_ADC_10: "Analog Volt 1"
diff --git a/firmware/config/engines/bmw_m73.cpp b/firmware/config/engines/bmw_m73.cpp
index 82030751f0..e4df3234e6 100644
--- a/firmware/config/engines/bmw_m73.cpp
+++ b/firmware/config/engines/bmw_m73.cpp
@@ -299,6 +299,10 @@ void setEngineBMW_M73_Proteus(DECLARE_CONFIG_PARAMETER_SIGNATURE) {
 	// engineConfiguration->vbattDividerCoeff = 7.6; // is that Proteus 0.2 value?
 
 
+	// no idea why https://github.com/rusefi/rusefi/wiki/HOWTO-M73-v12-on-Proteus uses non default CLT pin
+	// AT3, Proteus pin #31
+	engineConfiguration->clt.adcChannel = EFI_ADC_9;
+
 
 	// GPIOE_0:  "Lowside 14"
 	CONFIG(starterControlPin) = GPIOE_0;