diff --git a/README.md b/README.md
index fb865b6..6c4e11f 100644
--- a/README.md
+++ b/README.md
@@ -3,10 +3,12 @@ Fake Reservation System
 
 Allows you to send mails to your Google Inbox that trigger Google Now cards.
 
-To set up a server for yourself, you have to get an API key from
+To set up a server for yourself, you have to get an OAuth client ID from
 https://console.developers.google.com/apis/, download the `client_secret.json`
 and put it into the root directory.
 
+Also make sure to enable the *Google+ API* and the *Gmail API*.
+
 
 Installation
 ============
diff --git a/lib/Frs/SessionManager.php b/lib/Frs/SessionManager.php
index 2dc8553..bbba7c7 100644
--- a/lib/Frs/SessionManager.php
+++ b/lib/Frs/SessionManager.php
@@ -11,8 +11,10 @@ class SessionManager
     {
         $this->googleAuthValid = false;
         $this->client = new \Google_Client();
+        $this->client->setApplicationName('Fake Reservation System');
         $this->client->setAuthConfigFile('client_secret.json');
         $this->client->addScope(\Google_Service_Oauth2::USERINFO_EMAIL);
+        $this->client->addScope(\Google_Service_Gmail::GMAIL_SEND);
 
         session_start();
     }