diff --git a/CHANGES.md b/CHANGES.md
index f912c52fa6..5e9e5c112a 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -42,6 +42,7 @@
 - Fixed OAuth redirect when using the self-hosted instance default success URL ([#454](https://github.com/appwrite/appwrite/issues/454))
 - Fixed bug denying authentication with Github OAuth provider
 - New OAuth adapter for Box.com
+- New OAuth adapter for PayPal sandbox
 
 ## Breaking Changes
 - **Deprecated** `first` and `last` query params for documents list route in the database API
diff --git a/src/Appwrite/Auth/OAuth2/PaypalSandbox.php b/src/Appwrite/Auth/OAuth2/PaypalSandbox.php
index 7ca628f6bb..8c4baee6ba 100644
--- a/src/Appwrite/Auth/OAuth2/PaypalSandbox.php
+++ b/src/Appwrite/Auth/OAuth2/PaypalSandbox.php
@@ -7,7 +7,7 @@ use Appwrite\Auth\OAuth2\Paypal;
 
 class PaypalSandbox extends Paypal
 {
-    protected environment = 'sandbox';
+    protected $environment = 'sandbox';
 
     /**
      * @return string