diff --git a/src/CallHandler.js b/src/CallHandler.js
index 86674afd7d..7ec4e7d8bb 100644
--- a/src/CallHandler.js
+++ b/src/CallHandler.js
@@ -435,7 +435,7 @@ async function _startCallApp(roomId, type) {
     const confId = room.roomId.replace(/[^A-Za-z0-9]/g, '') + widgetSessionId;
     const jitsiDomain = SdkConfig.get()['jitsi']['preferredDomain'];
 
-    const widgetUrl = WidgetUtils.getLocalJitsiWrapperUrl({});
+    const widgetUrl = WidgetUtils.getLocalJitsiWrapperUrl();
 
     const widgetData = {
         widgetSessionId, // TODO: Remove this eventually
diff --git a/src/utils/WidgetUtils.js b/src/utils/WidgetUtils.js
index 26e29b49f8..e92fd1ed27 100644
--- a/src/utils/WidgetUtils.js
+++ b/src/utils/WidgetUtils.js
@@ -474,7 +474,7 @@ export default class WidgetUtils {
         return encodeURIComponent(`${widgetLocation}::${widgetUrl}`);
     }
 
-    static getLocalJitsiWrapperUrl(opts: {forLocalRender?: boolean}) {
+    static getLocalJitsiWrapperUrl(opts: {forLocalRender?: boolean}={}) {
         // NB. we can't just encodeURIComponent all of these because the $ signs need to be there
         const queryString = [
             'conferenceDomain=$domain',