diff --git a/README.md b/README.md
index ababb59..2c09713 100755
--- a/README.md
+++ b/README.md
@@ -84,8 +84,8 @@ public function toPushed($notifiable)
 - `setUrl($url)`: (string) adds a URL action to the notification
 - `toApp()`: sends the notification to all users registered to your app
 - `toChannel($alias)`: (string) sends the notification to a given channel alias
-- `toUser($accessToken)`: (string) sends the notification to a user that registered to your app using OAuth
-- `toPushedId($pushedId)`: (string) sends the notification directly to a user's Pushed ID
+- `toUser($accessToken, $alias)`: (string) sends the notification to a user that registered to your app using OAuth
+- `toPushedId($pushedId, $alias)`: (string) sends the notification directly to a user's Pushed ID
 
 ## Testing
 
diff --git a/src/PushedChannel.php b/src/PushedChannel.php
index cb73288..3e0c402 100644
--- a/src/PushedChannel.php
+++ b/src/PushedChannel.php
@@ -17,6 +17,8 @@ public function send($notifiable, Notification $notification)
     {
         $message = $notification->toPushed($notifiable);
 
-        $this->pushed->send($message->payload());
+        if ($message) {
+            $this->pushed->send($message->payload());
+        }
     }
 }