diff --git a/src/CallHandler.js b/src/CallHandler.js
index b21f07ad4f..362db939a3 100644
--- a/src/CallHandler.js
+++ b/src/CallHandler.js
@@ -433,7 +433,13 @@ async function _startCallApp(roomId, type) {
     const confId = `JitsiConference_${generateHumanReadableId()}`;
     const jitsiDomain = SdkConfig.get()['jitsi']['preferredDomain'];
 
-    const widgetUrl = WidgetUtils.getLocalJitsiWrapperUrl();
+    let widgetUrl = WidgetUtils.getLocalJitsiWrapperUrl();
+
+    // TODO: Remove URL hacks when the mobile clients eventually support v2 widgets
+    const parsedUrl = new URL(widgetUrl);
+    parsedUrl.search = ''; // set to empty string to make the URL class use searchParams instead
+    parsedUrl.searchParams.set('confId', confId);
+    widgetUrl = parsedUrl.toString();
 
     const widgetData = {
         conferenceId: confId,
diff --git a/src/utils/WidgetUtils.js b/src/utils/WidgetUtils.js
index 45ca7602bd..74e5f82c35 100644
--- a/src/utils/WidgetUtils.js
+++ b/src/utils/WidgetUtils.js
@@ -422,6 +422,22 @@ export default class WidgetUtils {
         app.eventId = eventId;
         app.name = app.name || app.type;
 
+        if (app.type === 'jitsi') {
+            console.log("Replacing Jitsi widget URL with local wrapper");
+            if (!app.data || !app.data.conferenceId) {
+                // Assumed to be a v1 widget: add a data object for visibility on the wrapper
+                // TODO: Remove this once mobile supports v2 widgets
+                console.log("Replacing v1 Jitsi widget with v2 equivalent");
+                const parsed = new URL(app.url);
+                app.data = {
+                    conferenceId: parsed.searchParams.get("confId"),
+                    domain: "jitsi.riot.im", // v1 widgets have this hardcoded
+                };
+            }
+
+            app.url = WidgetUtils.getLocalJitsiWrapperUrl({forLocalRender: true});
+        }
+
         if (app.data) {
             Object.keys(app.data).forEach((key) => {
                 params['$' + key] = app.data[key];
@@ -430,11 +446,6 @@ export default class WidgetUtils {
             app.waitForIframeLoad = (app.data.waitForIframeLoad === 'false' ? false : true);
         }
 
-        if (app.type === 'jitsi') {
-            console.log("Replacing Jitsi widget URL with local wrapper");
-            app.url = WidgetUtils.getLocalJitsiWrapperUrl({forLocalRender: true});
-        }
-
         app.url = encodeUri(app.url, params);
 
         return app;