diff --git a/.testr.conf b/.testr.conf
index cf71b487b4..b3a5d372ad 100644
--- a/.testr.conf
+++ b/.testr.conf
@@ -2,7 +2,7 @@
 test_command=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
              OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
              OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-160} \
-             ${PYTHON:-python} -m subunit.run discover -t ./ ./glance/tests $LISTOPT $IDOPTION
+             ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./glance/tests} $LISTOPT $IDOPTION
 
 test_id_option=--load-list $IDFILE
 test_list_option=--list