diff --git a/www-servers/tornado/tornado-6.0.4.ebuild b/www-servers/tornado/tornado-6.0.4.ebuild
index e0d9db3ce1671..ee6d9ccf897bc 100644
--- a/www-servers/tornado/tornado-6.0.4.ebuild
+++ b/www-servers/tornado/tornado-6.0.4.ebuild
@@ -43,6 +43,7 @@ src_prepare() {
 
 python_test() {
 	local -x ASYNC_TEST_TIMEOUT=60
+	cd "${BUILD_DIR}/lib" || die
 	"${PYTHON}" -m tornado.test.runtests --verbose ||
 		die "tests failed under ${EPYTHON}"
 }