diff --git a/src/enums/MDAppointmentRecordingHoster.php b/src/enums/MDAppointmentRecordingHoster.php
index 38fa6c2..c20d4ab 100644
--- a/src/enums/MDAppointmentRecordingHoster.php
+++ b/src/enums/MDAppointmentRecordingHoster.php
@@ -31,7 +31,7 @@ enum MDAppointmentRecordingHoster implements MDValueEnumInterface, JsonSerializa
      * @return string
      */
     public function toString():string {
-        return match(this) {
+        return match($this) {
             self::archive_org => 'Archive.org',
         };
     }