diff --git a/ghost/offers/lib/OfferRepository.js b/ghost/offers/lib/OfferRepository.js
index ef1d4583a7..ad91f780fb 100644
--- a/ghost/offers/lib/OfferRepository.js
+++ b/ghost/offers/lib/OfferRepository.js
@@ -9,7 +9,7 @@ const Offer = require('./domain/models/Offer');
 
 /**
  * @param {any} json
- * @returns {Offer.OfferProps}
+ * @returns {Offer.OfferCreateProps}
  */
 function toDomain(json) {
     return {
diff --git a/ghost/offers/lib/domain/models/Offer.js b/ghost/offers/lib/domain/models/Offer.js
index 8c956bcd1e..63595bf1f9 100644
--- a/ghost/offers/lib/domain/models/Offer.js
+++ b/ghost/offers/lib/domain/models/Offer.js
@@ -27,6 +27,22 @@ const OfferCurrency = require('./OfferCurrency');
  * @prop {OfferTier} tier
  */
 
+/**
+ * @typedef {object} OfferCreateProps
+ * @prop {string} id
+ * @prop {string} name
+ * @prop {string} code
+ * @prop {string} display_title
+ * @prop {string} display_description
+ * @prop {string} cadence
+ * @prop {string} type
+ * @prop {number} amount
+ * @prop {string} duration
+ * @prop {string} currency
+ * @prop {string} [stripe_coupon_id]
+ * @prop {TierProps|OfferTier} tier
+ */
+
 /**
  * @typedef {object} UniqueChecker
  * @prop {(code: OfferCode) => Promise<boolean>} isUniqueCode