diff --git a/main/inc/lib/extra_field_value.lib.php b/main/inc/lib/extra_field_value.lib.php
index 555753cd70..936d63dbd5 100644
--- a/main/inc/lib/extra_field_value.lib.php
+++ b/main/inc/lib/extra_field_value.lib.php
@@ -270,7 +270,7 @@ class ExtraFieldValue extends Model
                             $extraFieldValue->setFieldValue($params['field_value']);
                             $extraFieldValue->setFieldId($params['field_id']);
                             $extraFieldValue->setTms(api_get_utc_datetime(null, false, true));
-                            $app['orm.ems']['db_write']->persist($extraFieldValue);
+                            $app['orm.ems']['db_write']->merge($extraFieldValue);
                             $app['orm.ems']['db_write']->flush();
                         }
                     }