diff --git a/ArduPlane/AP_Arming.cpp b/ArduPlane/AP_Arming.cpp
index d7ecaa03fa..061cb476a0 100644
--- a/ArduPlane/AP_Arming.cpp
+++ b/ArduPlane/AP_Arming.cpp
@@ -437,7 +437,7 @@ bool AP_Arming_Plane::mission_checks(bool report)
 {
     // base checks
     bool ret = AP_Arming::mission_checks(report);
-    if (plane.mission.get_landing_sequence_start() > 0 && plane.g.rtl_autoland == RtlAutoland::RTL_DISABLE) {
+    if (plane.mission.contains_item(MAV_CMD_DO_LAND_START) && plane.g.rtl_autoland == RtlAutoland::RTL_DISABLE) {
         ret = false;
         check_failed(ARMING_CHECK_MISSION, report, "DO_LAND_START set and RTL_AUTOLAND disabled");
     }