diff --git a/__tests__/integration/mirador/companion_windows.test.js b/__tests__/integration/mirador/companion_windows.test.js
index f17e1d6261ee598090e14dc001b74196db7eff47..19eb7b1679f53ed15d29e1191f7f6d1f695b666f 100644
--- a/__tests__/integration/mirador/companion_windows.test.js
+++ b/__tests__/integration/mirador/companion_windows.test.js
@@ -8,7 +8,8 @@ describe('Companion Windows', () => {
     await expect(page).toClick('button[aria-label="Toggle window sidebar"]');
 
     await page.waitFor(1000);
-    await expect(page).toClick('button[aria-label="Open information companion window"]');
+    await expect(page).toMatchElement('.mirador-companion-window-left.mirador-window-sidebar-info-panel');
+    await expect(page).toMatchElement('button[aria-label="Open information companion window"][aria-selected="true"]');
 
     await expect(page).not.toMatchElement('.mirador-companion-window-right.mirador-window-sidebar-info-panel');