diff --git a/inc/sendgrid.mail.inc b/inc/sendgrid.mail.inc
index 673421a..f025328 100644
--- a/inc/sendgrid.mail.inc
+++ b/inc/sendgrid.mail.inc
@@ -155,7 +155,7 @@ class SendGridMailSystem implements MailSystemInterface {
       504,
     );
     if (in_array($result->code, $codes)) {
-      $queue = DrupalQueue::get('SendGridResendQueue')->createItem($message);
+      DrupalQueue::get('SendGridResendQueue')->createItem($message);
     }
 
     return FALSE;