diff --git a/models/sub_distributors.json b/models/sub_distributors.json
index 5921aad..ce5a011 100644
--- a/models/sub_distributors.json
+++ b/models/sub_distributors.json
@@ -30,7 +30,8 @@
       "type": "str",
       "length": 64,
       "nullable": "no",
-      "default": ""
+      "default": "",
+      "auto": "getID()"
     },
     {
       "name": "sub_dist_name",