diff --git a/ArduPlane/commands_logic.cpp b/ArduPlane/commands_logic.cpp
index 921af8e5c9..8c0e9f7e21 100644
--- a/ArduPlane/commands_logic.cpp
+++ b/ArduPlane/commands_logic.cpp
@@ -466,7 +466,7 @@ void Plane::do_continue_and_change_alt(const AP_Mission::Mission_Command& cmd)
     // be computed. However, if we had just changed modes before this, such as an aborted landing
     // via mode change, the prev and next wps are the same.
     float bearing;
-    if (!locations_are_same(prev_WP_loc, next_WP_loc)) {
+    if (!prev_WP_loc.same_latlon_as(next_WP_loc)) {
         // use waypoint based bearing, this is the usual case
         steer_state.hold_course_cd = -1;
     } else if (AP::gps().status() >= AP_GPS::GPS_OK_FIX_2D) {
@@ -778,7 +778,7 @@ bool Plane::verify_RTL()
 bool Plane::verify_continue_and_change_alt()
 {
     // is waypoint info not available and heading hold is?
-    if (locations_are_same(prev_WP_loc, next_WP_loc) &&
+    if (prev_WP_loc.same_latlon_as(next_WP_loc) &&
         steer_state.hold_course_cd != -1) {
         //keep flying the same course with fixed steering heading computed at start if cmd
         nav_controller->update_heading_hold(steer_state.hold_course_cd);
diff --git a/ArduPlane/quadplane.cpp b/ArduPlane/quadplane.cpp
index ae96a4f05c..9ab655dfe3 100644
--- a/ArduPlane/quadplane.cpp
+++ b/ArduPlane/quadplane.cpp
@@ -2217,7 +2217,7 @@ void QuadPlane::setup_target_position(void)
     poscontrol.target.z = plane.next_WP_loc.alt - origin.alt;
 
     const uint32_t now = AP_HAL::millis();
-    if (!locations_are_same(loc, last_auto_target) ||
+    if (!loc.same_latlon_as(last_auto_target) ||
         plane.next_WP_loc.alt != last_auto_target.alt ||
         now - last_loiter_ms > 500) {
         wp_nav->set_wp_destination(poscontrol.target);