diff --git a/frontend/e2e/persons.spec.ts b/frontend/e2e/persons.spec.ts
index 12f7d2f0..3a0e215c 100644
--- a/frontend/e2e/persons.spec.ts
+++ b/frontend/e2e/persons.spec.ts
@@ -259,7 +259,10 @@ test.describe('Conversations — enhancements', () => {
 		const originalReceiverId = url.searchParams.get('receiverId')!;
 
 		await page.getByTestId('conv-swap-btn').click();
-		await page.waitForURL(/senderId=/);
+		// Wait for the URL to reflect the swapped IDs (not just any URL with senderId=)
+		await page.waitForURL(
+			(url) => new URL(url).searchParams.get('senderId') === originalReceiverId
+		);
 
 		const swappedUrl = new URL(page.url());
 		expect(swappedUrl.searchParams.get('senderId')).toBe(originalReceiverId);