diff --git a/arm-documentdb/2015-04-08/swagger/documentdb.json b/arm-documentdb/2015-04-08/swagger/documentdb.json
index ffa87949464d..48e8345c74ab 100644
--- a/arm-documentdb/2015-04-08/swagger/documentdb.json
+++ b/arm-documentdb/2015-04-08/swagger/documentdb.json
@@ -742,7 +742,7 @@
     "subscriptionIdParameter": {
       "name": "subscriptionId",
       "in": "path",
-      "description": "Azure Subscription ID.",
+      "description": "Azure subscription ID.",
       "required": true,
       "type": "string"
     },