diff --git a/openrc b/openrc
index 3de7e39..d5b2156 100644
--- a/openrc
+++ b/openrc
@@ -81,3 +81,8 @@
 export NOVA_VERSION=${NOVA_VERSION:-1.1}
 # In the future this will change names:
 export COMPUTE_API_VERSION=${COMPUTE_API_VERSION:-$NOVA_VERSION}
+
+# Currently cinderclient needs you to specify the *volume api* version. This
+# needs to match the config of your catalog returned by Keystone.
+export CINDER_VERSION=${CINDER_VERSION:-2}
+export OS_VOLUME_API_VERSION=${OS_VOLUME_API_VERSION:-$CINDER_VERSION}