diff --git a/.circleci/config.yml b/.circleci/config.yml
index 33f0835..98ea4ac 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -34,4 +34,7 @@ jobs:
           key: v1-dependencies-{{ checksum "package.json" }}
 
       # run tests!
-      - run: npm test
+      - run:
+          command: |
+              npm run lint
+              npm test
diff --git a/src/cmd/client/payments.js b/src/cmd/client/payments.js
index a48029c..8645537 100644
--- a/src/cmd/client/payments.js
+++ b/src/cmd/client/payments.js
@@ -12,9 +12,9 @@ module.exports = (fetch, config) => {
     const paymentsData = await res.json()
 
     return (paymentsData || []).map(d => {
-      const { valid_at, ...rest } = d
-      if (valid_at != null) {
-        rest.validAt = valid_at
+      const { valid_at: validAt, ...rest } = d
+      if (validAt != null) {
+        rest.validAt = validAt
       }
       return rest
     })