diff --git a/aerial_robot_base/launch/external_module/mocap.launch b/aerial_robot_base/launch/external_module/mocap.launch
index 728a66bdd..3f8d77471 100644
--- a/aerial_robot_base/launch/external_module/mocap.launch
+++ b/aerial_robot_base/launch/external_module/mocap.launch
@@ -15,6 +15,7 @@
                child_frame_id: baselink
                parent_frame_id: world
       optitrack_config:
+         enable_optitrack: true
          multicast_address: 239.255.42.99
          command_port: 1510
          data_port: 1511