diff --git a/modules/entry/back/models/entry-observation.json b/modules/entry/back/models/entry-observation.json
index 87d3fd964..535735d83 100644
--- a/modules/entry/back/models/entry-observation.json
+++ b/modules/entry/back/models/entry-observation.json
@@ -25,8 +25,7 @@
         "entry": {
             "type": "belongsTo",
             "model": "Entry",
-            "foreignKey": "entryFk",
-            "required": true
+            "foreignKey": "entryFk"
         },
         "observationType": {
             "type": "belongsTo",
diff --git a/modules/ticket/back/models/ticket-observation.json b/modules/ticket/back/models/ticket-observation.json
index 51469c7a6..ba4f85ce8 100644
--- a/modules/ticket/back/models/ticket-observation.json
+++ b/modules/ticket/back/models/ticket-observation.json
@@ -25,8 +25,7 @@
         "ticket": {
             "type": "belongsTo",
             "model": "Ticket",
-            "foreignKey": "ticketFk",
-            "required": true
+            "foreignKey": "ticketFk"
         },
         "observationType": {
             "type": "belongsTo",