diff --git a/src/Api/Suppression/Unsubscribe.php b/src/Api/Suppression/Unsubscribe.php
index e60e141..fe28664 100644
--- a/src/Api/Suppression/Unsubscribe.php
+++ b/src/Api/Suppression/Unsubscribe.php
@@ -86,7 +86,7 @@ class Unsubscribe extends HttpApi
     /**
      * @param string      $domain   Domain to delete unsubscribe for
      * @param string      $address  Unsubscribe address
-     * @param string|null $tag Unsubscribe tag
+     * @param string|null $tag      Unsubscribe tag
      * @return DeleteResponse
      */
     public function delete(string $domain, string $address, string $tag = null)