diff --git a/src/CallHandler.js b/src/CallHandler.js
index b470585f36..7403483e36 100644
--- a/src/CallHandler.js
+++ b/src/CallHandler.js
@@ -458,7 +458,7 @@ function _startCallApp(roomId, type) {
         Date.now()
     );
 
-    WidgetUtils.setRoomWidget(widgetId, 'jitsi', widgetUrl, 'Jitsi', widgetData, roomId).then(() => {
+    WidgetUtils.setRoomWidget(roomId, widgetId, 'jitsi', widgetUrl, 'Jitsi', widgetData).then(() => {
         console.log('Jitsi widget added');
     }).catch((e) => {
         console.error(e);
diff --git a/src/ScalarMessaging.js b/src/ScalarMessaging.js
index 41224c266f..3325044b84 100644
--- a/src/ScalarMessaging.js
+++ b/src/ScalarMessaging.js
@@ -336,7 +336,7 @@ function setWidget(event, roomId) {
         if (!roomId) {
             sendError(event, _t('Missing roomId.'), null);
         }
-        WidgetUtils.setRoomWidget(widgetId, widgetType, widgetUrl, widgetName, widgetData, roomId).then(() => {
+        WidgetUtils.setRoomWidget(roomId, widgetId, widgetType, widgetUrl, widgetName, widgetData).then(() => {
             sendResponse(event, {
                 success: true,
             });
diff --git a/src/components/views/elements/AppTile.js b/src/components/views/elements/AppTile.js
index ea303a96b2..7b69057e3e 100644
--- a/src/components/views/elements/AppTile.js
+++ b/src/components/views/elements/AppTile.js
@@ -321,12 +321,8 @@ export default class AppTile extends React.Component {
                         this.setState({deleting: true});
 
                         WidgetUtils.setRoomWidget(
-                            this.props.id,
-                            null,
-                            null,
-                            null,
-                            null,
                             this.props.room.roomId,
+                            this.props.id,
                         ).catch((e) => {
                             console.error('Failed to delete widget', e);
                         }).finally(() => {
diff --git a/src/utils/WidgetUtils.js b/src/utils/WidgetUtils.js
index 924500b97d..ab5b5b0130 100644
--- a/src/utils/WidgetUtils.js
+++ b/src/utils/WidgetUtils.js
@@ -210,7 +210,7 @@ export default class WidgetUtils {
             console.error(`$widgetId is non-configurable`);
         }
 
-        const addingWidget = widgetUrl !== null;
+        const addingWidget = Boolean(widgetUrl);
 
         // Add new widget / update
         if (addingWidget) {
@@ -234,10 +234,10 @@ export default class WidgetUtils {
         });
     }
 
-    static setRoomWidget(widgetId, widgetType, widgetUrl, widgetName, widgetData, roomId) {
+    static setRoomWidget(roomId, widgetId, widgetType, widgetUrl, widgetName, widgetData) {
         let content;
 
-        const addingWidget = widgetUrl !== null;
+        const addingWidget = Boolean(widgetUrl);
 
         if (addingWidget) {
             content = {