diff --git a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/DataFlow.json b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/DataFlow.json
index f7b280011422..b8b9703a4964 100644
--- a/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/DataFlow.json
+++ b/specification/datafactory/resource-manager/Microsoft.DataFactory/stable/2018-06-01/entityTypes/DataFlow.json
@@ -81,9 +81,6 @@
           "x-ms-client-flatten": true,
           "$ref": "#/definitions/FlowletTypeProperties"
         }
-      },
-      "additionalProperties": {
-        "type": "object"
       }
     },
     "MappingDataFlowTypeProperties": {
@@ -196,9 +193,6 @@
           "items": {
             "type": "string"
           }
-        },
-        "additionalProperties": {
-          "type": "object"
         }
       }
     },