diff --git a/libraries/AP_SerialManager/AP_SerialManager.h b/libraries/AP_SerialManager/AP_SerialManager.h
index d5962efabf..6eb52e8569 100644
--- a/libraries/AP_SerialManager/AP_SerialManager.h
+++ b/libraries/AP_SerialManager/AP_SerialManager.h
@@ -124,6 +124,7 @@ public:
         SerialProtocol_SLCAN = 22,
         SerialProtocol_RCIN = 23,
         SerialProtocol_Battery =24,
+        SerialProtocol_Camera_X30T = 25,
     };
 
     // get singleton instance