diff --git a/.travis.yml b/.travis.yml
index baca1979..c5f98286 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,8 @@ php:
   - 5.4
   - 5.5
   - 5.6
-
+  - hhvm
+  
 allow_failures:
     - php: hhvm