diff --git a/tempest/api_schema/response/compute/v2/images.py b/tempest/api_schema/response/compute/v2/images.py
index 2317e6b..43dae38 100644
--- a/tempest/api_schema/response/compute/v2/images.py
+++ b/tempest/api_schema/response/compute/v2/images.py
@@ -40,11 +40,12 @@
             },
             'required': ['id', 'links']
         },
-        'OS-EXT-IMG-SIZE:size': {'type': 'integer'}
+        'OS-EXT-IMG-SIZE:size': {'type': 'integer'},
+        'OS-DCF:diskConfig': {'type': 'string'}
     },
     # 'server' attributes only comes in response body if image is
-    # associated with any server. 'OS-EXT-IMG-SIZE:size' is API
-    # extension, So those are not defined as 'required'.
+    # associated with any server. 'OS-EXT-IMG-SIZE:size' & 'OS-DCF:diskConfig'
+    # are API extension,  So those are not defined as 'required'.
     'required': ['id', 'status', 'updated', 'links', 'name',
                  'created', 'minDisk', 'minRam', 'progress',
                  'metadata']
diff --git a/tempest/api_schema/response/compute/v2/servers.py b/tempest/api_schema/response/compute/v2/servers.py
index 3d1eabe..c116bf5 100644
--- a/tempest/api_schema/response/compute/v2/servers.py
+++ b/tempest/api_schema/response/compute/v2/servers.py
@@ -339,8 +339,6 @@
 
 rebuild_server = copy.deepcopy(update_server)
 rebuild_server['status_code'] = [202]
-del rebuild_server['response_body']['properties']['server'][
-    'properties']['OS-DCF:diskConfig']
 
 rebuild_server_with_admin_pass = copy.deepcopy(rebuild_server)
 rebuild_server_with_admin_pass['response_body']['properties']['server'][