diff --git a/src/Illuminate/Mail/Mailable.php b/src/Illuminate/Mail/Mailable.php
index b1ac2135800..54949c19b08 100644
--- a/src/Illuminate/Mail/Mailable.php
+++ b/src/Illuminate/Mail/Mailable.php
@@ -1694,6 +1694,9 @@ private function ensureEnvelopeIsHydrated()
 
         foreach (['to', 'cc', 'bcc', 'replyTo'] as $type) {
             foreach ($envelope->{$type} as $address) {
+                if (is_array($address)) {
+                    $address = new \Illuminate\Mail\Mailables\Address(...$address);
+                }
                 $this->{$type}($address->address, $address->name);
             }
         }