diff --git a/src/main/flight/imu.c b/src/main/flight/imu.c
index 68f6917a65..aa71a5ba50 100644
--- a/src/main/flight/imu.c
+++ b/src/main/flight/imu.c
@@ -428,7 +428,7 @@ static void imuCalculateEstimatedAttitude(timeUs_t currentTimeUs)
     }
 #endif
 #if defined(USE_GPS)
-    else if (STATE(FIXED_WING) && sensors(SENSOR_GPS) && STATE(GPS_FIX) && gpsSol.numSat >= 5 && gpsSol.groundSpeed >= 300) {
+    if (!useMag && STATE(FIXED_WING) && sensors(SENSOR_GPS) && STATE(GPS_FIX) && gpsSol.numSat >= 5 && gpsSol.groundSpeed >= 300) {
         // In case of a fixed-wing aircraft we can use GPS course over ground to correct heading
         rawYawError = DECIDEGREES_TO_RADIANS(attitude.values.yaw - gpsSol.groundCourse);
         useYaw = true;