diff --git a/.circleci/config.yml b/.circleci/config.yml
index a8aa2c6..af63220 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -45,6 +45,6 @@ jobs:
             - node_modules
           key: 
             v1-dependencies-{{ checksum "package-lock.json" }}
-
+      - run: npm build
       # run tests!
       - run: npm test
\ No newline at end of file