diff --git a/schemas/2021-06-01/Microsoft.Cdn.json b/schemas/2021-06-01/Microsoft.Cdn.json
index 574b729f63..0e448b9e75 100644
--- a/schemas/2021-06-01/Microsoft.Cdn.json
+++ b/schemas/2021-06-01/Microsoft.Cdn.json
@@ -872,6 +872,23 @@
     "AFDEndpointProperties": {
       "type": "object",
       "properties": {
+        "autoGeneratedDomainNameLabelScope": {
+          "oneOf": [
+            {
+              "type": "string",
+              "enum": [
+                "TenantReuse",
+                "SubscriptionReuse",
+                "ResourceGroupReuse",
+                "NoReuse"
+              ]
+            },
+            {
+              "$ref": "https://schema.management.azure.com/schemas/common/definitions.json#/definitions/expression"
+            }
+          ],
+          "description": "Indicates the endpoint name reuse scope. The default value is TenantReuse."
+        },
         "enabledState": {
           "oneOf": [
             {