diff --git a/.travis.yml b/.travis.yml
index 2dd45ea0..3877e3b0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ node_js:
   - "6"
 before_script:
   - npm install -g grunt-cli
-  - mkdir ~/bin
+  - mkdir -p ~/bin
   - export PATH=~/bin:$PATH
   - npm install