diff --git a/firmware/integration/rusefi_config.txt b/firmware/integration/rusefi_config.txt
index 58c1d758e3..365580550a 100644
--- a/firmware/integration/rusefi_config.txt
+++ b/firmware/integration/rusefi_config.txt
@@ -910,7 +910,7 @@ custom maf_sensor_type_e 4 bits, S32, @OFFSET@, [0:1], @@maf_sensor_type_e_enum@
 	bit enableInnovateLC2
 	bit showHumanReadableWarning
 	bit stftIgnoreErrorMagnitude;+If enabled, adjust at a constant rate instead of a rate proportional to the current lambda error. This mode may be easier to tune, and more tolerant of sensor noise. Use of this mode is required if you have a narrowband O2 sensor.
-	bit unused45342
+	bit tempBooleanForVerySpecialCases
 	bit enableSoftwareKnock
 	bit verboseVVTDecoding;enable vvt_details
 	bit invertCamVVTSignal;get invertCamVVTSignal
diff --git a/firmware/tunerstudio/rusefi.input b/firmware/tunerstudio/rusefi.input
index 218d805143..13ff999156 100644
--- a/firmware/tunerstudio/rusefi.input
+++ b/firmware/tunerstudio/rusefi.input
@@ -3645,6 +3645,7 @@ cmd_set_engine_type_default					= "@@TS_IO_TEST_COMMAND_char@@\x00\x31\x00\x00"
 	    field = "boardUseCrankPullUp",                  boardUseCrankPullUp
 	    field = "disablePrimaryUart",                   disablePrimaryUart
 		field = "#System hacks"
+		field = "tempBooleanForVerySpecialCases",       tempBooleanForVerySpecialCases
 		field = "Global fuel correction", 				globalFuelCorrection
 		field = "MAP Averaging Logic @",				mapAveragingSchedulingAtIndex
 		field = "showHumanReadableWarning (affects Burn)",	showHumanReadableWarning