--- a/tox.ini	Fri Sep 23 09:50:16 2016 +0200
+++ b/tox.ini	Fri Sep 23 09:51:10 2016 +0200
@@ -45,7 +45,10 @@
 skip_install = true
 deps =
   flake8 >= 3
-commands = flake8 {posargs:{toxinidir}}
+commands =
+  flake8 {toxinidir}
+# So that Jenkins JUnit plugin does not complain about missing XML results.
+  touch test-results.xml
 
 [testenv:doc]
 changedir = doc
@@ -63,6 +66,8 @@
 # ignore symlinks that are not recognized by check-manifest, see
 # https://github.com/mgedmin/check-manifest/issues/69
     --ignore cubicweb/devtools/test/data/cubes/i18ntestcube,cubicweb/test/data/legacy_cubes*
+# So that Jenkins JUnit plugin does not complain about missing XML results.
+  touch test-results.xml
 
 [pytest]
 python_files = *test_*.py