diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
index e97d403c6a28b83447eb3189a064e63c614b00da..22ad25cc97ff48abcab2f8f2a956b800b484962a 100644
--- a/hw/virtio/virtio-balloon.c
+++ b/hw/virtio/virtio-balloon.c
@@ -53,6 +53,7 @@ static const char *balloon_stat_names[] = {
    [VIRTIO_BALLOON_S_MINFLT] = "stat-minor-faults",
    [VIRTIO_BALLOON_S_MEMFREE] = "stat-free-memory",
    [VIRTIO_BALLOON_S_MEMTOT] = "stat-total-memory",
+   [VIRTIO_BALLOON_S_AVAIL] = "stat-available-memory",
    [VIRTIO_BALLOON_S_NR] = NULL
 };
 
diff --git a/include/standard-headers/linux/virtio_balloon.h b/include/standard-headers/linux/virtio_balloon.h
index 2e2a6dcf3a6b212a81d4a43e881789fc808f821f..0df7c2efdd71121da05511409c6184d1f971fdb2 100644
--- a/include/standard-headers/linux/virtio_balloon.h
+++ b/include/standard-headers/linux/virtio_balloon.h
@@ -51,7 +51,8 @@ struct virtio_balloon_config {
 #define VIRTIO_BALLOON_S_MINFLT   3   /* Number of minor faults */
 #define VIRTIO_BALLOON_S_MEMFREE  4   /* Total amount of free memory */
 #define VIRTIO_BALLOON_S_MEMTOT   5   /* Total amount of memory */
-#define VIRTIO_BALLOON_S_NR       6
+#define VIRTIO_BALLOON_S_AVAIL    6   /* Amount of available memory in guest */
+#define VIRTIO_BALLOON_S_NR       7
 
 /*
  * Memory statistics structure.