diff --git a/tools/python/xen/xend/XendDomain.py b/tools/python/xen/xend/XendDomain.py
index ed3df761df..9a4d112e95 100644
--- a/tools/python/xen/xend/XendDomain.py
+++ b/tools/python/xen/xend/XendDomain.py
@@ -191,6 +191,8 @@ class XendDomain:
                         # instantiate domain if not started.
                         new_dom = XendDomainInfo.createDormant(dom)
                         self._managed_domain_register(new_dom)
+                    else:
+                        self._managed_domain_register(running_dom)
                 except Exception:
                     log.exception("Failed to create reference to managed "
                                   "domain: %s" % dom_name)