diff --git a/share/psl.ldif b/share/psl.ldif
index f3e2ce9..35e096c 100644
--- a/share/psl.ldif
+++ b/share/psl.ldif
@@ -8,10 +8,15 @@ olcAttributeTypes: ( 1.3.6.1.4.1.49755.1021.3.1
   NAME 'pslBadgeCSN'
   DESC 'CSN du badge Mifare du membre PSL'
   EQUALITY caseIgnoreMatch
-  SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{14})
+  SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{64})
+olcAttributeTypes: ( 1.3.6.1.4.1.49755.1021.3.2
+  NAME 'pslBadgeExpire'
+  EQUALITY generalizedTimeMatch
+  ORDERING generalizedTimeOrderingMatch
+  SYNTAX 1.3.6.1.4.1.1466.115.121.1.24)
 olcObjectClasses: ( 1.3.6.1.4.1.49755.1021.4.1
   NAME 'pslPerson'
   DESC 'membre de PSL'
   SUP top
   AUXILIARY
-  MAY (pslBadgeCSN) )
+  MAY (pslBadgeCSN $ pslBadgeExpire) )