diff --git a/.travis.yml b/.travis.yml
index 5ed86b3c6b9a..77a6a275fc53 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,5 @@
 language: node_js
 node_js:
-  - 6
-
+  - "6"
 script:
   - bash ./scripts/deploy.sh