diff --git a/ArduSub/GCS_Mavlink.cpp b/ArduSub/GCS_Mavlink.cpp
index 642e3dcecf..4f370a6ccc 100644
--- a/ArduSub/GCS_Mavlink.cpp
+++ b/ArduSub/GCS_Mavlink.cpp
@@ -886,17 +886,6 @@ void GCS_MAVLINK_Sub::handleMessage(mavlink_message_t* msg)
         break;
     }
 
-    case MAVLINK_MSG_ID_PARAM_REQUEST_LIST: {       // MAV ID: 21
-        // mark the firmware version in the tlog
-        send_text(MAV_SEVERITY_INFO, fwver.fw_string);
-
-#if defined(PX4_GIT_VERSION) && defined(NUTTX_GIT_VERSION)
-        send_text(MAV_SEVERITY_INFO, "PX4: " PX4_GIT_VERSION " NuttX: " NUTTX_GIT_VERSION);
-#endif
-        handle_param_request_list(msg);
-        break;
-    }
-
     case MAVLINK_MSG_ID_PARAM_VALUE: {
         sub.camera_mount.handle_param_value(msg);
         break;