diff --git a/.travis.yml b/.travis.yml
index c618e0cd..f5c96a8f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,6 +17,8 @@ env:
     # the travis/code_coverage_id_rsa RSA private key.
     - secure: "jtQTZKQBnzUlp/jz7NlM6470ZDnLGVAs53sgvIm4tcYqf9TWSXSXjIYvFsrS\nKPR2eyZaAevYysUkIGRFTUXTlG6tC36YngMp9+6FPxASl8mnGXsTbKcm613B\n59vD3242pgIgqhhmgFQ0c8gbvnE8PuF2aS4/hluP3r+AxhWN56E="
 
+before_install: true
+
 install:
   - travis/setup-secure-shell.sh
   - sh -c "if [ '$TRAVIS_PHP_VERSION' != 'hhvm' ]; then travis/install-php-extensions.sh; fi"