diff --git a/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/cluster.json b/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/cluster.json
index 9c62de695cb5..96e83bd8c2cf 100644
--- a/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/cluster.json
+++ b/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/cluster.json
@@ -676,6 +676,14 @@
                 "key": {
                     "type": "string",
                     "description": "The storage account access key."
+                },
+                "resourceId": {
+                    "type": "string",
+                    "description": "The resource ID of storage account, only to be specified for Azure Data Lake Storage Gen 2."
+                },
+                "msiResourceId": {
+                    "type": "string",
+                    "description": "The managed identity (MSI) that is allowed to access the storage account, only to be specified for Azure Data Lake Storage Gen 2."
                 }
             },
             "description": "The storage Account."
diff --git a/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2018-06-01-preview/cluster.json b/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2018-06-01-preview/cluster.json
index 772af1b8f092..61b0b7df3398 100644
--- a/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2018-06-01-preview/cluster.json
+++ b/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2018-06-01-preview/cluster.json
@@ -676,6 +676,14 @@
                 "key": {
                     "type": "string",
                     "description": "The storage account access key."
+                },
+                "resourceId": {
+                    "type": "string",
+                    "description": "The resource ID of storage account, only to be specified for Azure Data Lake Storage Gen 2."
+                },
+                "msiResourceId": {
+                    "type": "string",
+                    "description": "The managed identity (MSI) that is allowed to access the storage account, only to be specified for Azure Data Lake Storage Gen 2."
                 }
             },
             "description": "The storage Account."