diff --git a/spec/unit/embedded.spec.ts b/spec/unit/embedded.spec.ts
index fcc315b4574..cc866a4564e 100644
--- a/spec/unit/embedded.spec.ts
+++ b/spec/unit/embedded.spec.ts
@@ -40,7 +40,6 @@ import { SyncState } from "../../src/sync";
 import { ICapabilities, RoomWidgetClient } from "../../src/embedded";
 import { MatrixEvent } from "../../src/models/event";
 import { ToDeviceBatch } from "../../src/models/ToDeviceMessage";
-import { DeviceInfo } from "../../src/crypto/deviceinfo";
 import { sleep } from "../../src/utils";
 
 const testOIDCToken = {
@@ -731,8 +730,8 @@ describe("RoomWidgetClient", () => {
             const embeddedClient = client as RoomWidgetClient;
             await embeddedClient.encryptAndSendToDevices(
                 [
-                    { userId: "@alice:example.org", deviceInfo: new DeviceInfo("aliceWeb") },
-                    { userId: "@bob:example.org", deviceInfo: new DeviceInfo("bobDesktop") },
+                    { userId: "@alice:example.org", deviceId: "aliceWeb" },
+                    { userId: "@bob:example.org", deviceId: "bobDesktop" },
                 ],
                 payload,
             );
diff --git a/src/embedded.ts b/src/embedded.ts
index b0cc4c158e8..d42ce531315 100644
--- a/src/embedded.ts
+++ b/src/embedded.ts
@@ -54,8 +54,6 @@ import { MatrixError } from "./http-api/errors.ts";
 import { User } from "./models/user.ts";
 import { Room } from "./models/room.ts";
 import { ToDeviceBatch, ToDevicePayload } from "./models/ToDeviceMessage.ts";
-import { DeviceInfo } from "./crypto/deviceinfo.ts";
-import { IOlmDevice } from "./crypto/algorithms/megolm.ts";
 import { MapWithDefault, recursiveMapToObject } from "./utils.ts";
 import { TypedEventEmitter } from "./matrix.ts";
 
@@ -64,6 +62,17 @@ interface IStateEventRequest {
     stateKey?: string;
 }
 
+export interface OlmDevice {
+    /**
+     * The user ID of the device owner.
+     */
+    userId: string;
+    /**
+     * The device ID of the device.
+     */
+    deviceId: string;
+}
+
 export interface ICapabilities {
     /**
      * Event types that this client expects to send.
@@ -128,6 +137,7 @@ export enum RoomWidgetClientEvent {
     PendingEventsChanged = "PendingEvent.pendingEventsChanged",
 }
 export type EventHandlerMap = { [RoomWidgetClientEvent.PendingEventsChanged]: () => void };
+
 /**
  * A MatrixClient that routes its requests through the widget API instead of the
  * real CS API.
@@ -466,13 +476,10 @@ export class RoomWidgetClient extends MatrixClient {
         await this.widgetApi.sendToDevice(eventType, false, recursiveMapToObject(contentMap));
     }
 
-    public async encryptAndSendToDevices(userDeviceInfoArr: IOlmDevice<DeviceInfo>[], payload: object): Promise<void> {
+    public async encryptAndSendToDevices(userDeviceInfoArr: OlmDevice[], payload: object): Promise<void> {
         // map: user Id → device Id → payload
         const contentMap: MapWithDefault<string, Map<string, object>> = new MapWithDefault(() => new Map());
-        for (const {
-            userId,
-            deviceInfo: { deviceId },
-        } of userDeviceInfoArr) {
+        for (const { userId, deviceId } of userDeviceInfoArr) {
             contentMap.getOrCreate(userId).set(deviceId, payload);
         }