diff --git a/setup_env b/setup_env
index 9bb9007..6336a78 100755
--- a/setup_env
+++ b/setup_env
@@ -150,3 +150,6 @@ rm -rf virtualenv-${VENV_VERSION}
 rm virtualenv-${VENV_VERSION}.tar.gz
 ${WORKDIR}/.venv/bin/pip install -r ${WORKDIR}/requirements.txt
 ${WORKDIR}/.tempest/.venv/bin/pip install -r ${WORKDIR}/.tempest/requirements.txt
+
+# add additional packages to find more tests by tempest
+${WORKDIR}/.tempest/.venv/bin/pip install -r ${WORKDIR}/tempest-additional-requirements.txt
diff --git a/tempest-additional-requirements.txt b/tempest-additional-requirements.txt
new file mode 100644
index 0000000..3b356b1
--- /dev/null
+++ b/tempest-additional-requirements.txt
@@ -0,0 +1,6 @@
+# This file is a placeholder for additional requirements for external test suites.
+# Add packages that should be installed in tempest venv
+# So tempest can find plugins with additional tests
+# Examples of how to define packages:
+#ec2-api>=1.0.0
+#git+https://github.com/openstack/swift.git@master#egg=swift