diff --git a/src/CallHandler.js b/src/CallHandler.js
index abbd407e7f..7529171aa2 100644
--- a/src/CallHandler.js
+++ b/src/CallHandler.js
@@ -416,7 +416,7 @@ function _startCallApp(roomId, type) {
 
     const currentRoomWidgets = WidgetUtils.getRoomWidgets(room);
 
-    if (WidgetEchoStore.roomHasPendingWidgetsOfType(room, currentRoomWidgets, 'jitsi')) {
+    if (WidgetEchoStore.roomHasPendingWidgetsOfType(roomId, currentRoomWidgets, 'jitsi')) {
         const ErrorDialog = sdk.getComponent("dialogs.ErrorDialog");
 
         Modal.createTrackedDialog('Already have pending Jitsi Widget', '', ErrorDialog, {
diff --git a/src/components/structures/RoomView.js b/src/components/structures/RoomView.js
index 5c97b5c29a..1850806520 100644
--- a/src/components/structures/RoomView.js
+++ b/src/components/structures/RoomView.js
@@ -328,9 +328,9 @@ module.exports = React.createClass({
             return false;
         }
 
-        const widgets = WidgetEchoStore.getEchoedRoomWidgets(room, WidgetUtils.getRoomWidgets(room));
+        const widgets = WidgetEchoStore.getEchoedRoomWidgets(room.roomId, WidgetUtils.getRoomWidgets(room));
 
-        return widgets.length > 0 || WidgetEchoStore.roomHasPendingWidgets(room, WidgetUtils.getRoomWidgets(room));
+        return widgets.length > 0 || WidgetEchoStore.roomHasPendingWidgets(room.roomId, WidgetUtils.getRoomWidgets(room));
     },
 
     componentDidMount: function() {
diff --git a/src/components/views/rooms/AppsDrawer.js b/src/components/views/rooms/AppsDrawer.js
index 64aa8fadc8..cdaa2d2b1a 100644
--- a/src/components/views/rooms/AppsDrawer.js
+++ b/src/components/views/rooms/AppsDrawer.js
@@ -167,7 +167,7 @@ module.exports = React.createClass({
 
     _getApps: function() {
         const widgets = WidgetEchoStore.getEchoedRoomWidgets(
-            this.props.room, WidgetUtils.getRoomWidgets(this.props.room),
+            this.props.room.roomId, WidgetUtils.getRoomWidgets(this.props.room),
         );
         return widgets.map((ev) => {
             return this._initAppConfig(ev.getStateKey(), ev.getContent(), ev.sender);
@@ -260,7 +260,7 @@ module.exports = React.createClass({
         let spinner;
         if (
             apps.length === 0 && WidgetEchoStore.roomHasPendingWidgets(
-                this.props.room,
+                this.props.room.roomId,
                 WidgetUtils.getRoomWidgets(this.props.room),
             )
         ) {
diff --git a/src/stores/WidgetEchoStore.js b/src/stores/WidgetEchoStore.js
index f117b37e95..f50d0fd962 100644
--- a/src/stores/WidgetEchoStore.js
+++ b/src/stores/WidgetEchoStore.js
@@ -38,14 +38,14 @@ class WidgetEchoStore extends EventEmitter {
      * and we don't really need the actual widget events anyway since we just want to
      * show a spinner / prevent widgets being added twice.
      *
-     * @param {Room} room The room object to get widgets for
+     * @param {Room} roomId The ID of the room to get widgets for
      * @param {MatrixEvent[]} currentRoomWidgets Current widgets for the room
      * @returns {MatrixEvent[]} List of widgets in the room, minus any pending removal
      */
-    getEchoedRoomWidgets(room, currentRoomWidgets) {
+    getEchoedRoomWidgets(roomId, currentRoomWidgets) {
         const echoedWidgets = [];
 
-        const roomEchoState = Object.assign({}, this._roomWidgetEcho[room.roomId]);
+        const roomEchoState = Object.assign({}, this._roomWidgetEcho[roomId]);
 
         for (const w of currentRoomWidgets) {
             const widgetId = w.getStateKey();
@@ -70,8 +70,8 @@ class WidgetEchoStore extends EventEmitter {
         return echoedWidgets;
     }
 
-    roomHasPendingWidgetsOfType(room, currentRoomWidgets, type) {
-        const roomEchoState = Object.assign({}, this._roomWidgetEcho[room.roomId]);
+    roomHasPendingWidgetsOfType(roomId, currentRoomWidgets, type) {
+        const roomEchoState = Object.assign({}, this._roomWidgetEcho[roomId]);
         if (roomEchoState === undefined) return false;
 
         for (const w of currentRoomWidgets) {
@@ -88,20 +88,20 @@ class WidgetEchoStore extends EventEmitter {
         }
     }
 
-    roomHasPendingWidgets(room, currentRoomWidgets) {
-        return this.roomHasPendingWidgetsOfType(room, currentRoomWidgets);
+    roomHasPendingWidgets(roomId, currentRoomWidgets) {
+        return this.roomHasPendingWidgetsOfType(roomId, currentRoomWidgets);
     }
 
-    setRoomWidgetEcho(room, widgetId, state) {
-        if (this._roomWidgetEcho[room.roomId] === undefined) this._roomWidgetEcho[room.roomId] = {};
+    setRoomWidgetEcho(roomId, widgetId, state) {
+        if (this._roomWidgetEcho[roomId] === undefined) this._roomWidgetEcho[roomId] = {};
 
-        this._roomWidgetEcho[room.roomId][widgetId] = state;
+        this._roomWidgetEcho[roomId][widgetId] = state;
         this.emit('updateRoomWidgetEcho');
     }
 
-    removeRoomWidgetEcho(room, widgetId) {
-        delete this._roomWidgetEcho[room.roomId][widgetId];
-        if (this._roomWidgetEcho[room.roomId] === {}) delete this._roomWidgetEcho[room.roomId];
+    removeRoomWidgetEcho(roomId, widgetId) {
+        delete this._roomWidgetEcho[roomId][widgetId];
+        if (this._roomWidgetEcho[roomId] === {}) delete this._roomWidgetEcho[roomId];
         this.emit('updateRoomWidgetEcho');
     }
 }
diff --git a/src/utils/WidgetUtils.js b/src/utils/WidgetUtils.js
index 4effa21fd6..7bd50d063b 100644
--- a/src/utils/WidgetUtils.js
+++ b/src/utils/WidgetUtils.js
@@ -255,7 +255,7 @@ export default class WidgetUtils {
         }
 
         const room = MatrixClientPeg.get().getRoom(roomId);
-        WidgetEchoStore.setRoomWidgetEcho(room, widgetId, content);
+        WidgetEchoStore.setRoomWidgetEcho(roomId, widgetId, content);
 
         const client = MatrixClientPeg.get();
         // TODO - Room widgets need to be moved to 'm.widget' state events
@@ -263,7 +263,7 @@ export default class WidgetUtils {
         return client.sendStateEvent(roomId, "im.vector.modular.widgets", content, widgetId).then(() => {
             return WidgetUtils.waitForRoomWidget(widgetId, roomId, addingWidget);
         }).finally(() => {
-            WidgetEchoStore.removeRoomWidgetEcho(room, widgetId);
+            WidgetEchoStore.removeRoomWidgetEcho(roomId, widgetId);
         });
     }