diff --git a/extensions/diffs/src/browser.test.ts b/extensions/diffs/src/browser.test.ts
index 924f5eb5bdb..6eaaebeb6eb 100644
--- a/extensions/diffs/src/browser.test.ts
+++ b/extensions/diffs/src/browser.test.ts
@@ -81,12 +81,10 @@ describe("PlaywrightDiffScreenshotter", () => {
 
     expect(launchMock).toHaveBeenCalledTimes(1);
     expect(browser.newPage).toHaveBeenCalledTimes(2);
-    expect(browser.newPage).toHaveBeenNthCalledWith(
-      1,
-      expect.objectContaining({
-        deviceScaleFactor: 2,
-      }),
-    );
+    const firstPageParams = browser.newPage.mock.calls[0]?.[0] as
+      | { deviceScaleFactor?: number }
+      | undefined;
+    expect(firstPageParams?.deviceScaleFactor).toBe(2);
     expect(pages).toHaveLength(2);
     expect(pages[0]?.close).toHaveBeenCalledTimes(1);
     expect(pages[1]?.close).toHaveBeenCalledTimes(1);