diff --git a/specification/mediaservices/resource-manager/Microsoft.Media/stable/2022-08-01/ContentKeyPolicies.json b/specification/mediaservices/resource-manager/Microsoft.Media/stable/2022-08-01/ContentKeyPolicies.json
index 2f7afa5a2a30..3afae08a066e 100644
--- a/specification/mediaservices/resource-manager/Microsoft.Media/stable/2022-08-01/ContentKeyPolicies.json
+++ b/specification/mediaservices/resource-manager/Microsoft.Media/stable/2022-08-01/ContentKeyPolicies.json
@@ -498,7 +498,8 @@
         },
         "primaryVerificationKey": {
           "$ref": "#/definitions/ContentKeyPolicyRestrictionTokenKey",
-          "description": "The primary verification key."
+          "description": "The primary verification key.",
+          "x-nullable": true
         },
         "alternateVerificationKeys": {
           "type": "array",