diff --git a/test-plone-4.0.x.cfg b/test-plone-4.0.x.cfg
index 6949307..7e773d0 100644
--- a/test-plone-4.0.x.cfg
+++ b/test-plone-4.0.x.cfg
@@ -35,7 +35,11 @@ defaults = ['--auto-color', '--auto-progress']
 [coverage-test]
 recipe = zc.recipe.testrunner
 eggs = ${buildout:package-name}
-defaults = ['--coverage', '../../coverage', '-v', '--auto-progress']
+defaults = ['--coverage', 
+            '../../coverage',
+            '-v',
+            '--auto-progress',
+            '-s plone.app.discussion']
 
 [coverage-report]
 recipe = zc.recipe.egg