diff --git a/openstack/identity/v3/roles/urls.go b/openstack/identity/v3/roles/urls.go
new file mode 100644
index 0000000..8068ac3
--- /dev/null
+++ b/openstack/identity/v3/roles/urls.go
@@ -0,0 +1,7 @@
+package roles
+
+import "github.com/rackspace/gophercloud"
+
+func roleAssignmentsURL(client *gophercloud.ServiceClient) string {
+	return client.ServiceURL("role_assignments")
+}