diff --git a/AntennaTracker/GCS_Mavlink.cpp b/AntennaTracker/GCS_Mavlink.cpp
index fd01d907e8..0f8f189fa7 100644
--- a/AntennaTracker/GCS_Mavlink.cpp
+++ b/AntennaTracker/GCS_Mavlink.cpp
@@ -873,7 +873,6 @@ mission_failed:
         break;
     }
 
-#if HAL_CPU_CLASS > HAL_CPU_CLASS_16
     case MAVLINK_MSG_ID_SERIAL_CONTROL:
         handle_serial_control(msg, tracker.gps);
         break;
@@ -882,8 +881,6 @@ mission_failed:
         handle_gps_inject(msg, tracker.gps);
         break;
 
-#endif
-
     case MAVLINK_MSG_ID_AUTOPILOT_VERSION_REQUEST:
         tracker.gcs[chan-MAVLINK_COMM_0].send_autopilot_version(FIRMWARE_VERSION);
         break;