diff --git a/firmware/controllers/algo/airmass/alphan_airmass.cpp b/firmware/controllers/algo/airmass/alphan_airmass.cpp
index ffaafc8c17..e9c081edb4 100644
--- a/firmware/controllers/algo/airmass/alphan_airmass.cpp
+++ b/firmware/controllers/algo/airmass/alphan_airmass.cpp
@@ -17,6 +17,7 @@ AirmassResult AlphaNAirmass::getAirmass(int rpm) {
 		ve / 100.0f,
 		101.325f,		// std atmosphere pressure
 		273.0f + 20.0f	// std atmosphere pressure
+		PASS_ENGINE_PARAMETER_SUFFIX
 	);
 
 	return {