diff --git a/src/vector/jitsi/index.ts b/src/vector/jitsi/index.ts
index 3ebbc7d3b4..f31bf46baa 100644
--- a/src/vector/jitsi/index.ts
+++ b/src/vector/jitsi/index.ts
@@ -69,7 +69,7 @@ let widgetApi: WidgetApi;
             readyPromise = Promise.all([
                 widgetApi.waitFor<CustomEvent<IWidgetApiRequest>>("im.vector.ready")
                     .then(ev => widgetApi.transport.reply(ev.detail, {})),
-                widgetApi.waitFor("ready"),
+                widgetApi.waitFor("ready").then<void>(),
             ]);
             widgetApi.start();
         } else {