diff --git a/modules/ticket/back/models/expedition.json b/modules/ticket/back/models/expedition.json
index 853c22678..4a9682e03 100644
--- a/modules/ticket/back/models/expedition.json
+++ b/modules/ticket/back/models/expedition.json
@@ -27,6 +27,9 @@
       },
       "checked": {
         "type": "Number"
+      },
+      "externalId": {
+        "type": "Number"
       }
     },
     "relations": {