diff --git a/src/reducers/validate/eventSchema.js b/src/reducers/validate/eventSchema.js
index 38e0afc..7eeb4c5 100644
--- a/src/reducers/validate/eventSchema.js
+++ b/src/reducers/validate/eventSchema.js
@@ -1,7 +1,7 @@
 import Joi from 'joi'
 
 const eventSchema = Joi.object().keys({
-  id: Joi.string().required(),
+  id: Joi.string().allow(''),
   description: Joi.string().allow('').required(),
   date: Joi.string().allow(''),
   time: Joi.string().allow(''),
diff --git a/src/reducers/validate/validators.js b/src/reducers/validate/validators.js
index a89d0be..b3bce16 100644
--- a/src/reducers/validate/validators.js
+++ b/src/reducers/validate/validators.js
@@ -164,7 +164,8 @@ export function validateDomain (domain) {
   sanitizedDomain.filters = domain.filters
 
   // append events with datetime and sort
-  sanitizedDomain.events.forEach(event => {
+  sanitizedDomain.events.forEach((event, idx) => {
+    event.id = idx
     event.datetime = calcDatetime(event.date, event.time)
   })