diff --git a/coworking_relation/models/coworker.py b/coworking_relation/models/coworker.py
index d6f7217..177b744 100644
--- a/coworking_relation/models/coworker.py
+++ b/coworking_relation/models/coworker.py
@@ -17,6 +17,11 @@ class Coworker(models.Model):
 #Relation fields
     relation_ids = fields.One2many(
         'coworking.relation', 'relation')
+    relation_ids = fields.One2many(
+        string="Relation",
+        comodel_name="coworking.relation",
+        inverse_name="relation",
+    )
 
     @api.depends('event_ids')
     def _compute_events_coworker_count(self):