diff --git a/lib/Subscription.php b/lib/Subscription.php
index <HASH>..<HASH> 100644
--- a/lib/Subscription.php
+++ b/lib/Subscription.php
@@ -10,6 +10,17 @@ namespace Stripe;
 class Subscription extends ApiResource
 {
     /**
+     * These constants are possible representations of the status field.
+     *
+     * @link https://stripe.com/docs/api#subscription_object-status
+     */
+    const STATUS_ACTIVE = 'active';
+    const STATUS_CANCELED = 'canceled';
+    const STATUS_PAST_DUE = 'past_due';
+    const STATUS_TRIALING = 'trialing';
+    const STATUS_UNPAID = 'unpaid';
+
+    /**
      * @param string $id The ID of the subscription to retrieve.
      * @param array|string|null $opts
      *
Add few class' constants corresponding to subscription statuses (#<I>)