From eafd1c91438dd9bdc46e8ba2d8d99ffad5951455 Mon Sep 17 00:00:00 2001
From: Jeremy Kauffman <kauffj@gmail.com>
Date: Wed, 6 Sep 2017 16:20:05 -0400
Subject: [PATCH] potential fix for #536

---
 ui/js/actions/rewards.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ui/js/actions/rewards.js b/ui/js/actions/rewards.js
index 5d43c245f..274298d48 100644
--- a/ui/js/actions/rewards.js
+++ b/ui/js/actions/rewards.js
@@ -37,8 +37,8 @@ export function doClaimRewardType(rewardType) {
       reward = rewardsByType[rewardType],
       userIsRewardApproved = selectUserIsRewardApproved(state);
 
-    if (reward.transaction_id) {
-      //already claimed, do nothing
+    if (!reward || reward.transaction_id) {
+      //already claimed or doesn't exist, do nothing
       return;
     }