diff --git a/models/flow_definition.json b/models/flow_definition.json
index a5daa45..2a09b0e 100644
--- a/models/flow_definition.json
+++ b/models/flow_definition.json
@@ -8,6 +8,7 @@
 "fields": [
 {"name": "id", "title": "定义ID", "type": "str", "length": 32, "nullable": "no"},
 {"name": "name", "title": "流程名称", "type": "str", "length": 128},
+{"name": "org_id", "title": "机构id", "type": "str", "length": 32},
 {"name": "description", "title": "流程描述", "type": "text"},
 {"name": "version", "title": "版本", "type": "str", "length": 32},
 {"name": "dsl", "title": "YAML DSL", "type": "text"},