diff --git a/src/MandrillService.php b/src/MandrillService.php
index a96b4f7..5bea006 100644
--- a/src/MandrillService.php
+++ b/src/MandrillService.php
@@ -113,14 +113,17 @@ class MandrillService implements MandrillServiceInterface {
       $receiver_array = explode(',', $receiver);
       foreach ($receiver_array as $email) {
         if (preg_match(MANDRILL_EMAIL_REGEX, $email, $matches)) {
-          $recipients[] = array(
+          $recipients[] = [
             'email' => $matches[2],
             'name' => $matches[1],
             'type' => $type,
-          );
+          ];
         }
         else {
-          $recipients[] = array('email' => $email);
+          $recipients[] = [
+            'email' => $email,
+            'type' => $type,
+          ];
         }
       }
     }