diff --git a/ArduPlane/config.h b/ArduPlane/config.h
index 89b5e41e14..fc35cfef02 100644
--- a/ArduPlane/config.h
+++ b/ArduPlane/config.h
@@ -66,6 +66,7 @@
 # define MAG_ORIENTATION   AP_COMPASS_APM2_SHIELD
 # define CONFIG_SONAR_SOURCE SONAR_SOURCE_ANALOG_PIN
 # define CONFIG_PITOT_SOURCE PITOT_SOURCE_ANALOG_PIN
+# define MAGNETOMETER ENABLED
 # ifdef APM2_BETA_HARDWARE
 #  define CONFIG_BARO     AP_BARO_BMP085
 # else // APM2 Production Hardware (default)