diff --git a/modules/ticket/back/models/ticket-collection.json b/modules/ticket/back/models/ticket-collection.json
index 4bd34f08e5..bc1c2dd187 100644
--- a/modules/ticket/back/models/ticket-collection.json
+++ b/modules/ticket/back/models/ticket-collection.json
@@ -13,6 +13,9 @@
         },
         "usedShelves": {
             "type": "number"
+        },
+        "collectionFk": {
+            "type": "number"
         }
     },
     "relations": {
@@ -20,6 +23,11 @@
             "type": "belongsTo",
             "model": "Ticket",
             "foreignKey": "ticketFk"
+        },
+        "collection": {
+            "type": "belongsTo",
+            "model": "Collection",
+            "foreignKey": "collectionFk"
         }
     }
 }
\ No newline at end of file