diff --git a/APMrover2/GCS_Mavlink.cpp b/APMrover2/GCS_Mavlink.cpp
index 5391fe13f4..2ca8f3d5ef 100644
--- a/APMrover2/GCS_Mavlink.cpp
+++ b/APMrover2/GCS_Mavlink.cpp
@@ -859,7 +859,12 @@ void GCS_MAVLINK_Rover::handleMessage(mavlink_message_t* msg)
             }
             result = MAV_RESULT_ACCEPTED;
             break;
-#endif  // CAMERA == ENABLED
+
+        case MAV_CMD_DO_SET_CAM_TRIGG_DIST:
+            rover.camera.set_trigger_distance(packet.param1);
+            result = MAV_RESULT_ACCEPTED;
+            break;
+#endif // CAMERA == ENABLED
 
             case MAV_CMD_DO_MOUNT_CONTROL:
 #if MOUNT == ENABLED