diff --git a/specification/containerregistry/resource-manager/Microsoft.ContainerRegistry/stable/2017-10-01/containerregistry.json b/specification/containerregistry/resource-manager/Microsoft.ContainerRegistry/stable/2017-10-01/containerregistry.json
index 93b2ae0f7b12..1e11c6793626 100644
--- a/specification/containerregistry/resource-manager/Microsoft.ContainerRegistry/stable/2017-10-01/containerregistry.json
+++ b/specification/containerregistry/resource-manager/Microsoft.ContainerRegistry/stable/2017-10-01/containerregistry.json
@@ -1387,6 +1387,10 @@
           "$ref": "#/definitions/Sku",
           "description": "The SKU of the container registry."
         },
+        "identity": {
+          "$ref": "#/definitions/RegistryIdentity",
+          "description": "The identity of the container registry."
+        },
         "properties": {
           "$ref": "#/definitions/RegistryProperties",
           "description": "The properties of the container registry.",
@@ -1432,6 +1436,24 @@
         }
       }
     },
+    "RegistryIdentity": {
+      "description": "The identity of the container registry.",
+      "type": "object",
+      "properties": {
+        "type": {
+          "description": "The type of identity used for the registry.",
+          "type": "string"
+        },
+        "principalId": {
+          "description": "The principal ID of registry identity.",
+          "type": "string"
+        },
+        "tenantId": {
+          "description": "The tenant ID associated with the registry.",
+          "type": "string"
+        }
+      }
+    },
     "RegistryProperties": {
       "description": "The properties of a container registry.",
       "type": "object",
@@ -1530,6 +1552,10 @@
           "$ref": "#/definitions/Sku",
           "description": "The SKU of the container registry."
         },
+        "identity": {
+          "$ref": "#/definitions/RegistryIdentity",
+          "description": "The identity of the container registry."
+        },
         "properties": {
           "$ref": "#/definitions/RegistryPropertiesUpdateParameters",
           "description": "The properties that the container registry will be updated with.",