diff --git a/.travis.yml b/.travis.yml
index 714f8e2bb..36b928bcc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ php:
   - 7.0
   - 7.1
   - nightly
+  - hhvm
 
 env:
   - DB=mysql