--- a/run_tests
+++ b/run_tests
@@ -32,6 +32,6 @@
         echo "Running tests in module $module"
         cd $module
         cover_package=$(echo $module | tr "[:upper:]" "[:lower:]")
-        nosetests --cover-package=$cover_package --cover-html-dir=report.coverage --cover-erase $* || exit
+        nosetests --ignore-files="^test_.+_root" --cover-package=$cover_package --cover-html-dir=report.coverage --cover-erase $* || exit
     ) || exit
 done