diff --git a/.travis.yml b/.travis.yml
index d5b7684be..7b3a3486c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 language: node_js
 cache:
   directories:
-    node_modules
+    - node_modules
 node_js:
 - node
 before_install: