diff --git a/packages/obsidian-testing-framework/src/index.ts b/packages/obsidian-testing-framework/src/index.ts
index 3058cd8..d3752c7 100644
--- a/packages/obsidian-testing-framework/src/index.ts
+++ b/packages/obsidian-testing-framework/src/index.ts
@@ -79,11 +79,11 @@ const obsidianTestFixtures: Fixtures<ObsidianTestFixtures> = {
 		async ({ electronApp, obsidian: { vault } }, run) => {
 			const windows = electronApp.windows();
 			console.log("windows", windows);
-			let page = windows.last()!;
+			let page = windows[windows.length - 1]!;
 			await page.waitForEvent("load");
 			await page.waitForLoadState("domcontentloaded");
 			await selectNewVault(page, vault!);
-			page = electronApp.windows().last()!;
+			page = electronApp.windows()[electronApp.windows().length - 1]!;
 			await page.waitForEvent("load");
 			await page.waitForLoadState("domcontentloaded");
 			await waitForIndexingComplete(await getApp(page));