diff --git a/tox.ini b/tox.ini
index d70a8a6..385fbc3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,7 +3,7 @@ envlist = coverage-clean, py27, py33, py34, py35, coverage-report
 
 [testenv]
 commands =
-    coverage run --source=zope.app.publication -m zope.testrunner --test-path=src --auto-color --auto-progress
+    coverage run -m zope.testrunner --test-path=src --auto-color --auto-progress
 setenv =
   COVERAGE_FILE=.coverage.{envname}
 deps =