diff --git a/firmware/integration/rusefi_config.txt b/firmware/integration/rusefi_config.txt
index d3cc23afc9..b0ccf2b0e0 100644
--- a/firmware/integration/rusefi_config.txt
+++ b/firmware/integration/rusefi_config.txt
@@ -1161,7 +1161,7 @@ int16_t tps2Max;Full throttle#2. tpsMax value as 10 bit ADC value. Not Voltage!\
 	bit is_enabled_spi_5
 	bit is_enabled_spi_6
 	bit enableAemXSeriesEgt;AEM X-Series EGT gauge kit or rusEFI EGT sensor from Wideband controller
-	bit unusedBit_503_16
+	bit startRequestPinInverted,"Inverted","Normal"
 	bit unusedBit_503_17
 	bit skipBoardCanDash
 	bit unusedBit_503_19
diff --git a/firmware/tunerstudio/tunerstudio.template.ini b/firmware/tunerstudio/tunerstudio.template.ini
index 617f9837aa..840890f704 100644
--- a/firmware/tunerstudio/tunerstudio.template.ini
+++ b/firmware/tunerstudio/tunerstudio.template.ini
@@ -3714,6 +3714,7 @@ cmd_set_engine_type_default					= "@@TS_IO_TEST_COMMAND_char@@@@ts_command_e_TS_
         field = "Require Foot On Brake To Crank",        requireFootOnBrakeToCrank
 		field = "Start/Stop Button input",		startStopButtonPin
 		field = "Start/Stop Button input mode",				startStopButtonMode
+		field = "Start Button",                       startRequestPinInverted
 		field = "Starter Control",						starterControlPin, { starterControlPin != 0 || startStopButtonPin != 0}
 		field = "Start cranking maximum time",			startCrankingDuration, {startStopButtonPin != 0}
 		field = "Suppress On Start Up (Ms)",         startButtonSuppressOnStartUpMs, {startStopButtonPin != 0}