diff --git a/src/UnicaenMail/Entity/Db/Mapping/UnicaenMail.Entity.Db.Mail.dcm.xml b/src/UnicaenMail/Entity/Db/Mapping/UnicaenMail.Entity.Db.Mail.dcm.xml
index c647710a21ce0fe0b0b4a1575938fb14ce52f1e7..c6e926bfd676eb1e29f18190a90369c77aaf49f2 100644
--- a/src/UnicaenMail/Entity/Db/Mapping/UnicaenMail.Entity.Db.Mail.dcm.xml
+++ b/src/UnicaenMail/Entity/Db/Mapping/UnicaenMail.Entity.Db.Mail.dcm.xml
@@ -3,7 +3,7 @@
     <entity name="UnicaenMail\Entity\Db\Mail" table="unicaen_mail_mail">
 
         <id name="id" type="integer" column="id">
-            <generator strategy="IDENTITY"/>
+            <generator strategy="AUTO"/>
         </id>
 
         <field name="dateEnvoi"             type="datetime"                   column="date_envoi"           nullable="false"/>