diff --git a/taskcluster/ci/test/test-sets.yml b/taskcluster/ci/test/test-sets.yml
index d5b5bbb8a5f3..e0e7bf7477d0 100644
--- a/taskcluster/ci/test/test-sets.yml
+++ b/taskcluster/ci/test/test-sets.yml
@@ -79,6 +79,7 @@ headless:
 stylo-tests:
     - cppunit
     - crashtest
+    - reftest
     - reftest-stylo
     - mochitest-style
     - mochitest-chrome-style