diff --git a/ArduPlane/ArduPlane.pde b/ArduPlane/ArduPlane.pde
index 45c99975db..d49754d231 100644
--- a/ArduPlane/ArduPlane.pde
+++ b/ArduPlane/ArduPlane.pde
@@ -1010,7 +1010,7 @@ static void update_GPS(void)
     }
 
     // get position from AHRS
-    have_position = ahrs.get_position(current_loc);
+    have_position = ahrs.get_projected_position(current_loc);
 
     if (g_gps->new_data && g_gps->status() >= GPS::GPS_OK_FIX_3D) {
         g_gps->new_data = false;
diff --git a/ArduPlane/geofence.pde b/ArduPlane/geofence.pde
index 44a34510a4..790fa8cbce 100644
--- a/ArduPlane/geofence.pde
+++ b/ArduPlane/geofence.pde
@@ -213,7 +213,7 @@ static void geofence_check(bool altitude_check_only)
     } else if (geofence_check_maxalt()) {
         outside = true;
         breach_type = FENCE_BREACH_MAXALT;
-    } else if (!altitude_check_only && ahrs.get_position(loc)) {
+    } else if (!altitude_check_only && ahrs.get_projected_position(loc)) {
         Vector2l location;
         location.x = loc.lat;
         location.y = loc.lng;