diff --git a/ArduPlane/GCS_Mavlink.cpp b/ArduPlane/GCS_Mavlink.cpp
index 30a8e476b2..71df773b68 100644
--- a/ArduPlane/GCS_Mavlink.cpp
+++ b/ArduPlane/GCS_Mavlink.cpp
@@ -623,8 +623,10 @@ static const ap_message STREAM_EXTENDED_STATUS_msgs[] = {
     MSG_CURRENT_WAYPOINT,
     MSG_GPS_RAW,
     MSG_GPS_RTK,
+#if GPS_MAX_RECEIVERS > 1
     MSG_GPS2_RAW,
     MSG_GPS2_RTK,
+#endif
     MSG_NAV_CONTROLLER_OUTPUT,
 #if AP_FENCE_ENABLED
     MSG_FENCE_STATUS,