diff --git a/api-ref/source/v3/ext-backups.inc b/api-ref/source/v3/ext-backups.inc
index b1a02572fb2..ea7c4db5d87 100644
--- a/api-ref/source/v3/ext-backups.inc
+++ b/api-ref/source/v3/ext-backups.inc
@@ -91,6 +91,7 @@ Response Parameters
    - snapshot_id: snapshot_id_2
    - os-backup-project-attr:project_id: os-backup-project-attr:project_id
    - count: count
+   - metadata: metadata_9
 
 Response Example
 ----------------
@@ -144,6 +145,7 @@ Response Parameters
    - data_timestamp: data_timestamp
    - snapshot_id: snapshot_id_2
    - os-backup-project-attr:project_id: os-backup-project-attr:project_id
+   - metadata: metadata_9
 
 Response Example
 ----------------
diff --git a/api-ref/source/v3/samples/backup-show-response.json b/api-ref/source/v3/samples/backup-show-response.json
index e83b3313342..eff2e4ac019 100644
--- a/api-ref/source/v3/samples/backup-show-response.json
+++ b/api-ref/source/v3/samples/backup-show-response.json
@@ -27,6 +27,9 @@
         "updated_at": "2013-04-02T10:35:27.000000",
         "volume_id": "e5185058-943a-4cb4-96d9-72c184c337d6",
         "is_incremental": true,
-        "has_dependent_backups": false
+        "has_dependent_backups": false,
+        "metadata": {
+            "key": "value"
+        }
     }
 }
diff --git a/api-ref/source/v3/samples/backups-list-detailed-response.json b/api-ref/source/v3/samples/backups-list-detailed-response.json
index fa37f029980..6cf72cf9e51 100644
--- a/api-ref/source/v3/samples/backups-list-detailed-response.json
+++ b/api-ref/source/v3/samples/backups-list-detailed-response.json
@@ -25,7 +25,9 @@
             "updated_at": "2013-04-02T10:35:27.000000",
             "volume_id": "e5185058-943a-4cb4-96d9-72c184c337d6",
             "is_incremental": true,
-            "has_dependent_backups": false
+            "has_dependent_backups": false,
+            "metadata": {
+                "key": "value"}
         },
         {
             "availability_zone": "az1",
@@ -52,7 +54,9 @@
             "updated_at": "2013-04-02T10:21:48.000000",
             "volume_id": "e5185058-943a-4cb4-96d9-72c184c337d6",
             "is_incremental": true,
-            "has_dependent_backups": false
+            "has_dependent_backups": false,
+             "metadata": {
+                "key": "value"}
         }
     ],
     "count": 10