diff --git a/specification/workloadmonitor/resource-manager/Microsoft.WorkloadMonitor/preview/2020-01-13-preview/Microsoft.WorkloadMonitor.json b/specification/workloadmonitor/resource-manager/Microsoft.WorkloadMonitor/preview/2020-01-13-preview/Microsoft.WorkloadMonitor.json
index 8161165e45a8..e1ee1cd290bd 100644
--- a/specification/workloadmonitor/resource-manager/Microsoft.WorkloadMonitor/preview/2020-01-13-preview/Microsoft.WorkloadMonitor.json
+++ b/specification/workloadmonitor/resource-manager/Microsoft.WorkloadMonitor/preview/2020-01-13-preview/Microsoft.WorkloadMonitor.json
@@ -632,7 +632,10 @@
           "type": "array",
           "items": {
             "$ref": "#/definitions/Operation"
-          }
+          },
+          "x-ms-identifiers": [
+            "name"
+          ]
         },
         "nextLink": {
           "description": "Link to next page if the list is too long.",
@@ -715,7 +718,8 @@
               "type": "array",
               "items": {
                 "$ref": "#/definitions/ErrorDetails"
-              }
+              },
+              "x-ms-identifiers": []
             }
           }
         }