1 files changed, 2 insertions, 0 deletions

diff --git a/.travis.yml b/.travis.yml
index a5e3963e..bf13d293 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,3 +19,5 @@ matrix:
   allow_failures:
     - rvm: ruby-head
     - rvm: jruby-head
+before_install:
+  - gem install nokogiri -- --with-cflags='--std=gnu99'