--- a/make-rules/setup.py.mk	Fri Jul 10 06:49:44 2015 -0700
+++ b/make-rules/setup.py.mk	Fri Jul 10 10:30:17 2015 -0700
@@ -151,7 +151,7 @@
 COMPONENT_SYSTEM_TEST_DEP =	$(SOURCE_DIR)/.prep
 COMPONENT_SYSTEM_TEST_DIR =	$(COMPONENT_SRC)/test
 COMPONENT_SYSTEM_TEST_ENV_CMD =	$(ENV)
-COMPONENT_SYSTEM_TEST_ENV +=	PYTHONPATH=$(PROTO_DIR)$(PYTHON_VENDOR_PACKAGES)
+COMPONENT_SYSTEM_TEST_ENV +=	PYTHONPATH=$(PYTHON_VENDOR_PACKAGES)
 COMPONENT_SYSTEM_TEST_CMD =	$(PYTHON)
 COMPONENT_SYSTEM_TEST_ARGS +=	./runtests.py