diff --git a/lib/newdb b/lib/newdb
index d580694..52c710b 100755
--- a/lib/newdb
+++ b/lib/newdb
@@ -227,7 +227,6 @@ olcConstraintAttribute: supannEtablissement,
  supannEtuTypeDiplome,
   regex "^\{[^}]+\}.*$"
 olcConstraintAttribute: supannEtuAnneeInscription regex "^[0-9][0-9][0-9][0-9]$"
-olcConstraintAttribute: pslBadgeCSN regex "^[0-9A-F]{8,14}$"
 
 add olcOverlay={4}unique,olcDatabase={2}mdb,cn=config
 objectClass: olcOverlayConfig
diff --git a/lib/resetdb b/lib/resetdb
index 22e6cd9..ca878c3 100755
--- a/lib/resetdb
+++ b/lib/resetdb
@@ -135,12 +135,12 @@ olcConstraintAttribute: supannAliasLogin regex "^[[:alnum:]]+$"
 EOF
 		echoonerror ldapmodify -H ldapi:// -Y EXTERNAL -f $LDIF && echo "- contrainte supannAliasLogin retiré"
 	fi
-	# add the pslBadgeCSN constraint
-        if ! (ldapsearch -H ldapi:// -Y EXTERNAL -b "$DN2" 'olcConstraintAttribute=pslBadgeCSN regex "^[0-9A-F]{8,14}$"' 2>/dev/null | grep -q ^olc); then
+	# remove the pslBadgeCSN constraint
+        if (ldapsearch -H ldapi:// -Y EXTERNAL -b "$DN2" 'olcConstraintAttribute=pslBadgeCSN regex "^[0-9A-F]{8,14}$"' 2>/dev/null | grep -q ^olc); then
 		cat <<EOF >$LDIF
 dn: $DN2
 changetype: modify
-add: olcConstraintAttribute
+delete: olcConstraintAttribute
 olcConstraintAttribute: pslBadgeCSN regex "^[0-9A-F]{8,14}$"
 EOF
 		echoonerror ldapmodify -H ldapi:// -Y EXTERNAL -f $LDIF && echo "- contrainte pslBadgeCSN ajouté"