Index: firmware/App/Services/SystemCommMessages.h
===================================================================
diff -u -r9978c11c54347bac3e696512e02776a5d8ff8490 -rfbb180e9b4830dd5f890f4f33f022ce375ff4012
--- firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 9978c11c54347bac3e696512e02776a5d8ff8490)
+++ firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision fbb180e9b4830dd5f890f4f33f022ce375ff4012)
@@ -69,7 +69,7 @@
 void handleFWVersionRequest( MESSAGE_T *message );
 
 // MSG_ID_REQUEST_FW_VERSIONS
-void handleHDSerialNumberRequest( MESSAGE_T *message );
+void handleHDSerialNumberRequest( void );
 
 // MSG_ID_UI_REQUEST_SERVICE_INFO
 void handleHDServiceScheduleRequest( MESSAGE_T *message );