diff --git a/specification/mixedreality/resource-manager/Microsoft.MixedReality/stable/2021-01-01/common.json b/specification/mixedreality/resource-manager/Microsoft.MixedReality/stable/2021-01-01/common.json
index ba652fb6ffbd..661c10fe5627 100644
--- a/specification/mixedreality/resource-manager/Microsoft.MixedReality/stable/2021-01-01/common.json
+++ b/specification/mixedreality/resource-manager/Microsoft.MixedReality/stable/2021-01-01/common.json
@@ -94,6 +94,10 @@
       "description": "Common Properties shared by Mixed Reality Accounts",
       "type": "object",
       "properties": {
+        "storageAccountName": {
+          "description": "The name of the storage account associated with this accountId",
+          "type": "string"
+        },
         "accountId": {
           "description": "unique id of certain account.",
           "readOnly": true,