diff --git a/tempest/api_schema/compute/v3/servers.py b/tempest/api_schema/compute/v3/servers.py
index 390962e..f2a4b78 100644
--- a/tempest/api_schema/compute/v3/servers.py
+++ b/tempest/api_schema/compute/v3/servers.py
@@ -42,3 +42,7 @@
         'required': ['server']
     }
 }
+
+attach_detach_volume = {
+    'status_code': [202]
+}