diff --git a/src/Notifications.php b/src/Notifications.php
index <HASH>..<HASH> 100644
--- a/src/Notifications.php
+++ b/src/Notifications.php
@@ -277,6 +277,8 @@ class Notifications
             ->setAllowedTypes('chrome_big_picture', 'string')
             ->setDefined('chrome_web_icon')
             ->setAllowedTypes('chrome_web_icon', 'string')
+            ->setDefined('chrome_web_image')
+            ->setAllowedTypes('chrome_web_image', 'string')
             ->setDefined('firefox_icon')
             ->setAllowedTypes('firefox_icon', 'string')
             ->setDefined('url')
Adding "chrome_web_image" to list of options. (#<I>)