diff --git a/packages/dashboard/src/pages/api/stripe/createCheckoutSession.js b/packages/dashboard/src/pages/api/stripe/createCheckoutSession.js
index dcbc894f..b1966638 100644
--- a/packages/dashboard/src/pages/api/stripe/createCheckoutSession.js
+++ b/packages/dashboard/src/pages/api/stripe/createCheckoutSession.js
@@ -45,7 +45,7 @@ export default async (req, res) => {
       payment_method_types: ["card"],
       line_items: [{ price, quantity: 1 }],
       customer: user.stripeCustomerId,
-      customer_email: user.stripeCustomerId ? undefined : user.email,
+      customer_email: user.stripeCustomerId ? null : user.email,
       client_reference_id: user.id,
       // ?session_id={CHECKOUT_SESSION_ID} means the redirect will have the session ID set as a query param
       success_url: `${process.env.SKYNET_DASHBOARD_URL}/payments?session_id={CHECKOUT_SESSION_ID}`,