diff --git a/src/utils/AbortableOperation.ts b/src/utils/AbortableOperation.ts
index 0cc49e10..d03f820a 100644
--- a/src/utils/AbortableOperation.ts
+++ b/src/utils/AbortableOperation.ts
@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-interface IAbortable {
+export interface IAbortable {
     abort();
 }
 
diff --git a/src/utils/timeout.ts b/src/utils/timeout.ts
index 96efc10d..f0460047 100644
--- a/src/utils/timeout.ts
+++ b/src/utils/timeout.ts
@@ -17,12 +17,11 @@ limitations under the License.
 
 import {ConnectionError} from "../matrix/error.js";
 import type {Timeout} from "../platform/web/dom/Clock.js"
+import type {IAbortable} from "./AbortableOperation";
 
 type TimeoutCreator = (ms: number) => Timeout;
-// ts-todo: export type RequestResult from fetch.js? we'll need to wait until it's typescript though.
-type Abortable = { abort(): void; [key: string]: any };
 
-export function abortOnTimeout(createTimeout: TimeoutCreator, timeoutAmount: number, requestResult: Abortable, responsePromise: Promise<Response>) {
+export function abortOnTimeout(createTimeout: TimeoutCreator, timeoutAmount: number, requestResult: IAbortable, responsePromise: Promise<Response>) {
     const timeout = createTimeout(timeoutAmount);
     // abort request if timeout finishes first
     let timedOut = false;