diff --git a/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml b/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml
index d8c86d6e6..851e12c85 100644
--- a/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml
+++ b/security/acme-client/src/opnsense/mvc/app/controllers/OPNsense/AcmeClient/forms/dialogValidation.xml
@@ -662,6 +662,7 @@
         <id>validation.dns_hostingde_server</id>
         <label>Server URL</label>
         <type>text</type>
+        <help>Enter the API endpoint, e.g. https://secure.hosting.de or https://partner.http.net.</help>
     </field>
     <field>
         <id>validation.dns_hostingde_apiKey</id>