diff --git a/.travis.yml b/.travis.yml
index 2019384e19..b2517f71c3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,7 +13,7 @@ addons:
 before_install:
   - if test "$TRAVIS_OS_NAME" == "osx"; then brew update; brew install icu4c; fi
 env:
-  - KOREBUILD_DNU_RESTORE_CORECLR=true MONO_THREADS_PER_CPU=2000
+  - KOREBUILD_DNU_RESTORE_CORECLR=true MONO_THREADS_PER_CPU=2000 KOREBUILD_TEST_DNXCORE=true
 mono:
   - 4.0.5
 os: