diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 740ccc60ac4b41751d379d5b7c70f4c691acd8b1..ee2257104f50e9f0ecad80210b108039c31bb4e2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -78,7 +78,7 @@ build PDF documentation:
 run tests:
   stage: test
   script:
-    - py.test --cov=kwant --cov-report term --cov-report html --flakes kwant
+    - py.test -r w --cov=kwant --cov-report term --cov-report html --flakes kwant
   artifacts:
     paths:
       - htmlcov