diff --git a/platforms/posix/include/system_config.h b/platforms/posix/include/system_config.h
index 111434ebce..1443e0b5eb 100644
--- a/platforms/posix/include/system_config.h
+++ b/platforms/posix/include/system_config.h
@@ -56,6 +56,8 @@
 #define board_get_uuid32(id) do {for(int _idi=0; _idi < PX4_CPU_UUID_WORD32_LENGTH; _idi++) {id[_idi] = _idi;}} while(0)
 #define board_get_uuid32_formated(format_buffer, size, format, seperator) do { strcpy(format_buffer, SIM_FORMATED_UUID); } while(0)
 
+#define board_get_px4_guid_formated(format_buffer, size) do { strcpy(format_buffer, BOARD_OVERRIDE_PX4_GUID); } while(0)
+
 #define BOARD_HAS_NO_UUID
 
 #define CONFIG_NFILE_STREAMS 1