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-rw-r--r--src/mame/includes/system16.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mame/includes/system16.h b/src/mame/includes/system16.h
index d757d5268e7..f6ca6404054 100644
--- a/src/mame/includes/system16.h
+++ b/src/mame/includes/system16.h
@@ -1,5 +1,9 @@
// license:BSD-3-Clause
// copyright-holders:Nicola Salmoria, Phil Stroffolino, Mirko Buffoni
+#ifndef MAME_INCLUDES_SYSTEM16_H
+#define MAME_INCLUDES_SYSTEM16_H
+
+#pragma once
#include "video/sega16sp.h"
#include "machine/74157.h"
@@ -299,3 +303,5 @@ private:
optional_shared_ptr<uint16_t> m_decrypted_opcodes;
output_finder<2> m_leds;
};
+
+#endif // MAME_INCLUDES_SYSTEM16_H