2 files changed, 7 insertions, 5 deletions
diff --git a/src/replay_gain.c b/src/replay_gain.c
index d4f9f33ea..4f589c233 100644
--- a/src/replay_gain.c
+++ b/src/replay_gain.c
@@ -25,7 +25,7 @@
 #include "audio_format.h"
 #include "os_compat.h"
 
-int replay_gain_mode = REPLAY_GAIN_OFF;
+enum replay_gain_mode replay_gain_mode = REPLAY_GAIN_OFF;
 
 static float replay_gain_preamp = 1.0;
 
diff --git a/src/replay_gain.h b/src/replay_gain.h
index 9dae1fb1b..d3fae3f46 100644
--- a/src/replay_gain.h
+++ b/src/replay_gain.h
@@ -20,13 +20,15 @@
 #ifndef MPD_REPLAY_GAIN_H
 #define MPD_REPLAY_GAIN_H
 
-#define REPLAY_GAIN_OFF		0
-#define REPLAY_GAIN_TRACK	1
-#define REPLAY_GAIN_ALBUM	2
+enum replay_gain_mode {
+	REPLAY_GAIN_OFF = -1,
+	REPLAY_GAIN_ALBUM,
+	REPLAY_GAIN_TRACK,
+};
 
 struct audio_format;
 
-extern int replay_gain_mode;
+extern enum replay_gain_mode replay_gain_mode;
 
 struct replay_gain_info {
 	float album_gain;