diff --git a/packages/features/bookings/lib/getBookingFields.ts b/packages/features/bookings/lib/getBookingFields.ts
index cab4a34ecd..b6441d3b77 100644
--- a/packages/features/bookings/lib/getBookingFields.ts
+++ b/packages/features/bookings/lib/getBookingFields.ts
@@ -251,6 +251,7 @@ export const ensureBookingInputsHaveSystemFields = ({
       type: "multiemail",
       editable: "system-but-optional",
       name: "guests",
+      defaultPlaceholder: "email",
       required: false,
       hidden: disableGuests,
       sources: [