diff --git a/types/stripe/index.d.ts b/types/stripe/index.d.ts
index bbb003eca0..068755e157 100644
--- a/types/stripe/index.d.ts
+++ b/types/stripe/index.d.ts
@@ -4642,9 +4642,10 @@ declare namespace Stripe {
             items: IList<subscriptionItems.ISubscriptionItem>;
 
             /**
-             * Hash describing the plan the customer is subscribed to
+             * Hash describing the plan the customer is subscribed to.  Only set if the subscription
+             * contains a single plan.
              */
-            plan: plans.IPlan;
+            plan?: plans.IPlan | null;
 
             /**
              * The number of subscriptions for the associated plan