diff --git a/.travis.yml b/.travis.yml
index f9ee2ab0f..99d8b8f0f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,6 +23,7 @@ before_script:
   - python3 --version
 
 script:
+  - make -C mpy-cross
   - make -C minimal test
   - make -C unix deplibs
   - make -C unix