diff --git a/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2021-03-01/managedClusters.json b/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2021-03-01/managedClusters.json
index 53d4eb21f5d3..a30747cd5373 100644
--- a/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2021-03-01/managedClusters.json
+++ b/specification/containerservice/resource-manager/Microsoft.ContainerService/stable/2021-03-01/managedClusters.json
@@ -68,9 +68,9 @@
     "/subscriptions/{subscriptionId}/providers/Microsoft.ContainerService/locations/{location}/osOptions/default": {
       "get": {
         "tags": [
-          "ContainerServices"
+          "managedClusters"
         ],
-        "operationId": "ContainerServices_GetOSOptions",
+        "operationId": "ManagedClusters_GetOSOptions",
         "summary": "Gets supported OS options in the specified subscription.",
         "description": "Gets supported OS options in the specified subscription.",
         "parameters": [