diff --git a/lib/middleware.js b/lib/middleware.js
index 052d6da..9dce30e 100644
--- a/lib/middleware.js
+++ b/lib/middleware.js
@@ -34,7 +34,7 @@ function route(opts) {
       req.srf.locals.stats.increment('sbc.originations', tags);
       return;
     }
-    const aor = `sip:${uri.user}@${uri.host}`;
+    const aor = `${uri.user}@${uri.host}`;
     req.locals = req.locals || {};
 
     debug(`received outbound INVITE to ${req.calledNumber} from server at ${req.server.hostport}`);
diff --git a/package.json b/package.json
index 872dcb2..809589d 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "drachtio-srf": "^4.4.28",
     "jambonz-rtpengine-utils": "0.0.5",
     "jambonz-db-helpers": "^0.3.2",
-    "jambonz-mw-registrar": "^0.1.0",
+    "jambonz-mw-registrar": "^0.1.2",
     "jambonz-stats-collector": "0.0.1",
     "pino": "^5.14.0",
     "rtpengine-client": "^0.0.8"