diff --git a/services/web/app/coffee/Features/Subscription/SubscriptionUpdater.coffee b/services/web/app/coffee/Features/Subscription/SubscriptionUpdater.coffee
index d24f8e53c8..b317be605a 100644
--- a/services/web/app/coffee/Features/Subscription/SubscriptionUpdater.coffee
+++ b/services/web/app/coffee/Features/Subscription/SubscriptionUpdater.coffee
@@ -71,7 +71,7 @@ module.exports = SubscriptionUpdater =
 			subscription.groupPlan = true
 			subscription.membersLimit = plan.membersLimit
 		subscription.save ->
-			allIds = _.union subscription.members_id, [subscription.admin_id]
+			allIds = _.union subscription.member_ids, [subscription.admin_id]
 			jobs = allIds.map (user_id)->
 				return (cb)->
 					SubscriptionUpdater._setUsersMinimumFeatures user_id, cb
diff --git a/services/web/test/UnitTests/coffee/Subscription/SubscriptionUpdaterTests.coffee b/services/web/test/UnitTests/coffee/Subscription/SubscriptionUpdaterTests.coffee
index c91ca34023..3ae7eee71b 100644
--- a/services/web/test/UnitTests/coffee/Subscription/SubscriptionUpdaterTests.coffee
+++ b/services/web/test/UnitTests/coffee/Subscription/SubscriptionUpdaterTests.coffee
@@ -18,14 +18,14 @@ describe "SubscriptionUpdater", ->
 		@allUserIds = ["13213", "dsadas", "djsaiud89"]
 		@subscription = subscription =
 			admin_id: @adminUser._id
-			members_id: @allUserIds
+			member_ids: @allUserIds
 			save: sinon.stub().callsArgWith(0)
 			freeTrial:{}
 			planCode:"student_or_something"
 
 		@groupSubscription =
 			admin_id: @adminUser._id
-			members_id: @allUserIds
+			member_ids: @allUserIds
 			save: sinon.stub().callsArgWith(0)
 			freeTrial:{}
 			planCode:"group_subscription"