diff --git a/src/addons.js b/src/addons.js
index 17e4130f7..0b954bbb5 100644
--- a/src/addons.js
+++ b/src/addons.js
@@ -1053,6 +1053,7 @@ function setupLdap(app, options, callback) {
 
     var env = [
         { name: `${envPrefix}LDAP_SERVER`, value: '172.18.0.1' },
+        { name: 'CLOUDRON_LDAP_HOST', value: '172.18.0.1' }, // to keep things in sync with the database _HOST vars
         { name: `${envPrefix}LDAP_PORT`, value: '' + constants.LDAP_PORT },
         { name: `${envPrefix}LDAP_URL`, value: 'ldap://172.18.0.1:' + constants.LDAP_PORT },
         { name: `${envPrefix}LDAP_USERS_BASE_DN`, value: 'ou=users,dc=cloudron' },