diff --git a/security/acme-client/src/opnsense/scripts/OPNsense/AcmeClient/certhelper.php b/security/acme-client/src/opnsense/scripts/OPNsense/AcmeClient/certhelper.php
index d297b4ade..e5a2657ff 100755
--- a/security/acme-client/src/opnsense/scripts/OPNsense/AcmeClient/certhelper.php
+++ b/security/acme-client/src/opnsense/scripts/OPNsense/AcmeClient/certhelper.php
@@ -658,7 +658,7 @@ function run_acme_validation($certObj, $valObj, $acctObj)
                 $proc_env['ACMEPROXY_USERNAME'] = (string)$valObj->dns_acmeproxy_username;
                 $proc_env['ACMEPROXY_PASSWORD'] = (string)$valObj->dns_acmeproxy_password;
                 break;
-	    case 'dns_ad':
+            case 'dns_ad':
                 $proc_env['AD_API_KEY'] = (string)$valObj->dns_ad_key;
                 break;
             case 'dns_ali':