diff --git a/.travis.yml b/.travis.yml
index ac208f890799a..e8d50d060f19d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -33,3 +33,4 @@ install:
   - "node . install"
 script:
   - "node . run tap -- \"test/tap/*.js\" \"test/broken-under-nyc/*.js\""
+  - "node . run license --production --errors-only"