diff --git a/index.js b/index.js
index b68b217..2fa0132 100644
--- a/index.js
+++ b/index.js
@@ -25,6 +25,7 @@ var LDAP = new LdapAuth({
 LDAP.on('error', function (err) {
   console.error('LdapAuth: ', err);
 });
+ldapConf = null;
 
 fastify.addContentTypeParser('application/json', {
     parseAs: 'string'