diff --git a/subscription.go b/subscription.go
index 450a762..b46203a 100644
--- a/subscription.go
+++ b/subscription.go
@@ -62,14 +62,14 @@ type PlanOverridesInput struct {
 }
 
 type SubscriptionInput struct {
-	ExternalCustomerID string             `json:"external_customer_id,omitempty"`
-	PlanCode           string             `json:"plan_code,omitempty"`
-	SubscriptionAt     *time.Time         `json:"subscription_at,omitempty"`
-	EndingAt           *time.Time         `json:"ending_at,omitempty"`
-	BillingTime        BillingTime        `json:"billing_time,omitempty"`
-	PlanOverrides      PlanOverridesInput `json:"plan_overrides,omitempty"`
-	ExternalID         string             `json:"external_id"`
-	Name               string             `json:"name"`
+	ExternalCustomerID string              `json:"external_customer_id,omitempty"`
+	PlanCode           string              `json:"plan_code,omitempty"`
+	SubscriptionAt     *time.Time          `json:"subscription_at,omitempty"`
+	EndingAt           *time.Time          `json:"ending_at,omitempty"`
+	BillingTime        BillingTime         `json:"billing_time,omitempty"`
+	PlanOverrides      *PlanOverridesInput `json:"plan_overrides,omitempty"`
+	ExternalID         string              `json:"external_id"`
+	Name               string              `json:"name"`
 }
 
 type SubscriptionTerminateInput struct {