diff --git a/app/schemas/models/prepaid.schema.coffee b/app/schemas/models/prepaid.schema.coffee
index 1ead96ced..fa5edd1b8 100644
--- a/app/schemas/models/prepaid.schema.coffee
+++ b/app/schemas/models/prepaid.schema.coffee
@@ -2,7 +2,10 @@ c = require './../schemas'
 
 PrepaidSchema = c.object({title: 'Prepaid', required: ['creator', 'type']}, {
   creator: c.objectId(links: [ {rel: 'extra', href: '/db/user/{($)}'} ])
-  redeemers: c.array {}, c.objectId(links: [ {rel: 'extra', href: '/db/user/{($)}'} ])
+  redeemers: c.array {title: 'Users who have redeemed this code'},
+    c.object {required: ['date', 'userID']},
+      date: c.date {title: 'Redeemed date'}
+      userID: c.objectId(links: [ {rel: 'extra', href: '/db/user/{($)}'} ])
   maxRedeemers: { type: 'integer'}
   code: c.shortString(title: "Unique code to redeem")
   type: { type: 'string' }