diff --git a/seafile-ldap.py b/seafile-ldap.py
index 1dd5026..13e4d90 100644
--- a/seafile-ldap.py
+++ b/seafile-ldap.py
@@ -174,7 +174,7 @@ logger.debug("Finished SQL query for LDAPUsers")
 # if they are disabled in the sql table, enable them
 set_sqlLDAPusers = set(sqlLDAPusers)
 for user in ldapUsers:
-    if (user.mail in set_sqlLDAPusers):
+    if [item for item in sqlLDAPusers if user.mail in item]:
         logged.debug("LDAP User {0} is already in the SQL Table".format(user.mail))
 
 #seafileUsers = request('admin/search-user/?query=@johnhgaunt.com', seafileURL, seafileToken)['response']['user_list']