diff --git a/.travis.yml b/.travis.yml
index 063a5c0..1b63c5c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,10 +6,12 @@ cache:
   npm: true
   directories:
     - node_modules
+before_install:
+  - chmod +x src/postinstall.js
 install:
   - npm install
 before_script:
   - npm install -g jshint
 script:
   - npm test
-  - jshint ./src
\ No newline at end of file
+  - jshint ./src