diff --git a/.travis.yml b/.travis.yml
index 592a4dba..1b84f7f0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,8 +4,8 @@ php:
   - 5.3
   - 5.4
   - 5.5
-  ## Wait for solving this issue : https://github.com/travis-ci/travis-ci/issues/1749
-  # - hhvm
+  ## @reference https://github.com/travis-ci/travis-ci/issues/1749
+  - hhvm
 
 before_script:
   ## Composer