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-rw-r--r--src/mame/includes/gcpinbal.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mame/includes/gcpinbal.h b/src/mame/includes/gcpinbal.h
index 6b7c76e0690..e499e5563d0 100644
--- a/src/mame/includes/gcpinbal.h
+++ b/src/mame/includes/gcpinbal.h
@@ -1,5 +1,9 @@
// license:BSD-3-Clause
// copyright-holders:David Graves, R. Belmont
+#ifndef MAME_INCLUDES_GCPINBAL_H
+#define MAME_INCLUDES_GCPINBAL_H
+
+#pragma once
#include "machine/eepromser.h"
#include "machine/mb3773.h"
@@ -88,3 +92,5 @@ private:
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
};
+
+#endif // MAME_INCLUDES_GCPINBAL_H