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-rw-r--r--drivers/alsa/audio_driver_alsa.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/alsa/audio_driver_alsa.h b/drivers/alsa/audio_driver_alsa.h
index a8caf0fbae..50bd9e853d 100644
--- a/drivers/alsa/audio_driver_alsa.h
+++ b/drivers/alsa/audio_driver_alsa.h
@@ -28,12 +28,14 @@
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
-#include "servers/audio_server.h"
-
#ifdef ALSA_ENABLED
+#ifndef AUDIO_DRIVER_ALSA_H
+#define AUDIO_DRIVER_ALSA_H
+
#include "core/os/mutex.h"
#include "core/os/thread.h"
+#include "servers/audio_server.h"
#include <alsa/asoundlib.h>
@@ -87,4 +89,6 @@ public:
~AudioDriverALSA();
};
-#endif
+#endif // AUDIO_DRIVER_ALSA_H
+
+#endif // ALSA_ENABLED