diff --git a/app/portainer/settings/authentication/ldap/ldap-settings-dn-builder/ldap-settings-dn-builder.controller.js b/app/portainer/settings/authentication/ldap/ldap-settings-dn-builder/ldap-settings-dn-builder.controller.js
index 4b829967a..2c15638f8 100644
--- a/app/portainer/settings/authentication/ldap/ldap-settings-dn-builder/ldap-settings-dn-builder.controller.js
+++ b/app/portainer/settings/authentication/ldap/ldap-settings-dn-builder/ldap-settings-dn-builder.controller.js
@@ -41,7 +41,7 @@ export default class LdapSettingsBaseDnBuilderController {
   }
 
   getOUValues(dn, domainSuffix = '') {
-    const regex = /(\w+)=(\w*),?/;
+    const regex = /(\w+)=([a-zA-Z0-9_ ]*),?/;
     let ouValues = [];
     let left = dn;
     let match = left.match(regex);