diff --git a/ArduCopter/GCS_Mavlink.cpp b/ArduCopter/GCS_Mavlink.cpp
index f58cf32e58..67323ce764 100644
--- a/ArduCopter/GCS_Mavlink.cpp
+++ b/ArduCopter/GCS_Mavlink.cpp
@@ -2062,11 +2062,9 @@ void GCS_MAVLINK::handleMessage(mavlink_message_t* msg)
 #endif
         break;
 
-#if MAVLINK_PROTOCOL_VERSION >= 2
     case MAVLINK_MSG_ID_SETUP_SIGNING:
         handle_setup_signing(msg);
         break;
-#endif
         
     }     // end switch
 } // end handle mavlink