diff --git a/tox.ini b/tox.ini
index eaaa8b59..ba224b9e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -21,7 +21,7 @@ whitelist_externals =
     py.test
 deps = -r{toxinidir}/test-requirements.txt
 commands =
-    py.test -v \
+    py.test -v -s \
         --ignore tests/integration \
         --cov module_build_service \
         --cov-report html \