diff --git a/block.c b/block.c
index 8d4cfea797..bfb0deca49 100644
--- a/block.c
+++ b/block.c
@@ -3609,7 +3609,7 @@ int bdrv_media_changed(BlockDriverState *bs)
 /**
  * If eject_flag is TRUE, eject the media. Otherwise, close the tray
  */
-void bdrv_eject(BlockDriverState *bs, int eject_flag)
+void bdrv_eject(BlockDriverState *bs, bool eject_flag)
 {
     BlockDriver *drv = bs->drv;
 
diff --git a/block.h b/block.h
index ec0a6c8468..49bca5aec0 100644
--- a/block.h
+++ b/block.h
@@ -265,7 +265,7 @@ int bdrv_enable_write_cache(BlockDriverState *bs);
 int bdrv_is_inserted(BlockDriverState *bs);
 int bdrv_media_changed(BlockDriverState *bs);
 void bdrv_lock_medium(BlockDriverState *bs, bool locked);
-void bdrv_eject(BlockDriverState *bs, int eject_flag);
+void bdrv_eject(BlockDriverState *bs, bool eject_flag);
 void bdrv_get_format(BlockDriverState *bs, char *buf, int buf_size);
 BlockDriverState *bdrv_find(const char *name);
 BlockDriverState *bdrv_next(BlockDriverState *bs);
diff --git a/block/raw-posix.c b/block/raw-posix.c
index 2ee5d690e9..2d1bc13484 100644
--- a/block/raw-posix.c
+++ b/block/raw-posix.c
@@ -994,7 +994,7 @@ static int floppy_media_changed(BlockDriverState *bs)
     return ret;
 }
 
-static void floppy_eject(BlockDriverState *bs, int eject_flag)
+static void floppy_eject(BlockDriverState *bs, bool eject_flag)
 {
     BDRVRawState *s = bs->opaque;
     int fd;
@@ -1084,7 +1084,7 @@ static int cdrom_is_inserted(BlockDriverState *bs)
     return 0;
 }
 
-static void cdrom_eject(BlockDriverState *bs, int eject_flag)
+static void cdrom_eject(BlockDriverState *bs, bool eject_flag)
 {
     BDRVRawState *s = bs->opaque;
 
@@ -1194,7 +1194,7 @@ static int cdrom_is_inserted(BlockDriverState *bs)
     return raw_getlength(bs) > 0;
 }
 
-static void cdrom_eject(BlockDriverState *bs, int eject_flag)
+static void cdrom_eject(BlockDriverState *bs, bool eject_flag)
 {
     BDRVRawState *s = bs->opaque;
 
diff --git a/block/raw.c b/block/raw.c
index 6098070d65..1cdac0ccdc 100644
--- a/block/raw.c
+++ b/block/raw.c
@@ -61,7 +61,7 @@ static int raw_media_changed(BlockDriverState *bs)
     return bdrv_media_changed(bs->file);
 }
 
-static void raw_eject(BlockDriverState *bs, int eject_flag)
+static void raw_eject(BlockDriverState *bs, bool eject_flag)
 {
     bdrv_eject(bs->file, eject_flag);
 }
diff --git a/block_int.h b/block_int.h
index 7946cf66a1..04f4b836ca 100644
--- a/block_int.h
+++ b/block_int.h
@@ -197,7 +197,7 @@ struct BlockDriver {
     /* removable device specific */
     int (*bdrv_is_inserted)(BlockDriverState *bs);
     int (*bdrv_media_changed)(BlockDriverState *bs);
-    void (*bdrv_eject)(BlockDriverState *bs, int eject_flag);
+    void (*bdrv_eject)(BlockDriverState *bs, bool eject_flag);
     void (*bdrv_lock_medium)(BlockDriverState *bs, bool locked);
 
     /* to control generic scsi devices */