diff --git a/common/Makedefs b/common/Makedefs
index 0911ee8..c4fe0ee 100644
--- a/common/Makedefs
+++ b/common/Makedefs
@@ -39,3 +39,6 @@
 
 HYPERCACHE_BRANCH ?= $(DEFAULT_BRANCH)
 HYPERCACHE_GIT_URL ?= $(CORD_BASE_GIT_URL)/hypercache.git
+
+OPENSTACK_BRANCH ?= $(DEFAULT_BRANCH)
+OPENSTACK_GIT_URL ?= $(CORD_BASE_GIT_URL)/openstack.git