diff --git a/.testr.conf b/.testr.conf
index fbea056..9a72d29 100644
--- a/.testr.conf
+++ b/.testr.conf
@@ -1,5 +1,5 @@
 [DEFAULT]
-test_command=${PYTHON:-python} -m subunit.run $LISTOPT $IDOPTION
-test_id_option=$(${PYTHON:-python} -m tools/run_test_classes $IDFILE)
-test_list_option=discover -t ./ ./tempest --list
+test_command=${PYTHON:-python} -m subunit.run discover -t ./ ./tempest $LISTOPT $IDOPTION
+test_id_option=--load-list $IDFILE
+test_list_option=--list
 group_regex=([^\.]*\.)*