diff --git a/sql-edition/servers/LDAPConnector.py b/sql-edition/servers/LDAPConnector.py
index 1f35c207db250a25a66813dce9b76ea9ec0f5b18..9e3a30707b596cdf7eeadbb21398adf4248ebc01 100644
--- a/sql-edition/servers/LDAPConnector.py
+++ b/sql-edition/servers/LDAPConnector.py
@@ -39,6 +39,8 @@ def get_uid(card_id):
 def set_card_id(uidNumber, card_id):
         ldapconn = get_ldap_connection()
         
+	# fix uidNumber for three/four digit uids
+	uidNumber = str(int(uidNumber))
         basedn = 'ou=People,dc=ucc,dc=gu,dc=uwa,dc=edu,dc=au'
         filter = ldap.filter.filter_format('(uidNumber=%s)', (uidNumber, ))
         attrs = ('objectClass', )