diff --git a/lib/busvoodoo_global.h b/lib/busvoodoo_global.h
index 5b85bf0..87aa1c0 100644
--- a/lib/busvoodoo_global.h
+++ b/lib/busvoodoo_global.h
@@ -18,6 +18,8 @@
  *  @date 2018
  *  @note peripherals used: time @ref busvoodoo_led_timer
  */
+#pragma once
+#include "menu.h"
 
 /** @defgroup busvoodoo_voltages pin to control voltage regulators and pull-ups definitions
  *  @{
diff --git a/lib/menu.h b/lib/menu.h
index e7e4774..3c7d465 100644
--- a/lib/menu.h
+++ b/lib/menu.h
@@ -17,6 +17,7 @@
  *  @author King Kévin <kingkevin@cuvoodoo.info>
  *  @date 2018
  */
+#pragma once
 
 /** types of argument accepted by the command */
 enum menu_argument_t {