diff --git a/seafile-ldap.py b/seafile-ldap.py
index d4ca6d6..a4bb23a 100644
--- a/seafile-ldap.py
+++ b/seafile-ldap.py
@@ -166,8 +166,7 @@ for ldapUser in ldapUsers:
     logger.debug("Checking if LDAP user is in SQl Table")
     cnx = mysql.connector.connect(**dbconfig)
     cursor = cnx.cursor()
-    query = "SELECT * FROM LDAPUsers WHERE email = '%s'" % ldapUser.mail
-    logger.debug("Query: {0}".format(query))
+    query = "SELECT * FROM LDAPUsers WHERE email = '{0}'".format(ldapUser.mail)
     cursor.execute(query)
     row_count = cursor.rowcount
     logger.debug("Found {0} SQL LDAP user".format(cursor.rowcount))