diff --git a/firmware/config/boards/hellen/alphax-2chan/board_configuration.cpp b/firmware/config/boards/hellen/alphax-2chan/board_configuration.cpp
index b539c3575e..2454e1a769 100644
--- a/firmware/config/boards/hellen/alphax-2chan/board_configuration.cpp
+++ b/firmware/config/boards/hellen/alphax-2chan/board_configuration.cpp
@@ -129,7 +129,7 @@ void setBoardDefaultConfiguration() {
 	    // todo: flip that condition to check for "if not old board"
 	    setHellenMMbaro();
 	    engineConfiguration->map.sensor.hwChannel = H144_IN_MAP3; // On-board MAP
-	    engineConfiguration->map.type = MT_MPXH6400;
+	    engineConfiguration->map.sensor.type = MT_MPXH6400;
 	} else {
 	    engineConfiguration->map.sensor.hwChannel = H144_IN_MAP2; // B2 external signal
 	    engineConfiguration->baroSensor.type = MT_MPXH6400;
diff --git a/firmware/config/boards/hellen/alphax-4chan/board_configuration.cpp b/firmware/config/boards/hellen/alphax-4chan/board_configuration.cpp
index 9eb19c6dcb..c20c9aecda 100644
--- a/firmware/config/boards/hellen/alphax-4chan/board_configuration.cpp
+++ b/firmware/config/boards/hellen/alphax-4chan/board_configuration.cpp
@@ -175,7 +175,7 @@ void setBoardDefaultConfiguration() {
     // todo: should be conditional? currently set best for newest boards based on MegaModule
 	setHellenMMbaro();
     engineConfiguration->map.sensor.hwChannel = H144_IN_MAP3; // On-board MAP
-    engineConfiguration->map.type = MT_MPXH6400;
+    engineConfiguration->map.sensor.type = MT_MPXH6400;
     //	engineConfiguration->baroSensor.type = MT_MPXH6400;
     //	engineConfiguration->baroSensor.hwChannel = H144_IN_MAP3; // On-board MAP