diff --git a/schemas/2018-06-01/Microsoft.DataFactory.json b/schemas/2018-06-01/Microsoft.DataFactory.json
index 422efbe070..c6970bf87a 100644
--- a/schemas/2018-06-01/Microsoft.DataFactory.json
+++ b/schemas/2018-06-01/Microsoft.DataFactory.json
@@ -27265,6 +27265,7 @@
         }
       },
       "required": [
+        "exportSettings",
         "type"
       ],
       "description": "A copy activity snowflake source."