diff --git a/apiserver/schema/services/_common.conf b/apiserver/schema/services/_common.conf
index 1aec228..fc818a0 100644
--- a/apiserver/schema/services/_common.conf
+++ b/apiserver/schema/services/_common.conf
@@ -44,28 +44,33 @@ batch_operation {
         }
     }
     response {
-        failures {
-            type: array
-            item {
-                type: object
-                id: {
-                    description: ID of the failed entity
-                    type: string
-                }
-                error: {
-                    description: Error info
+        type: object
+        properties {
+            failures {
+                type: array
+                items {
                     type: object
                     properties {
-                        codes {
-                            type: array
-                            item {type: integer}
-                        }
-                        msg {
+                        id: {
+                            description: ID of the failed entity
                             type: string
                         }
-                        data {
+                        error: {
+                            description: Error info
                             type: object
-                            additionalProperties: True
+                            properties {
+                                codes {
+                                    type: array
+                                    items {type: integer}
+                                }
+                                msg {
+                                    type: string
+                                }
+                                data {
+                                    type: object
+                                    additionalProperties: True
+                                }
+                            }
                         }
                     }
                 }