diff --git a/playwright/spa-call-sticky.spec.ts b/playwright/spa-call-sticky.spec.ts
index 58e9c997..8a0acf5a 100644
--- a/playwright/spa-call-sticky.spec.ts
+++ b/playwright/spa-call-sticky.spec.ts
@@ -5,7 +5,7 @@ SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
 Please see LICENSE in the repository root for full details.
 */
 
-import { test } from "@playwright/test";
+import { expect, test } from "@playwright/test";
 
 import { SpaHelpers } from "./spa-helpers";
 
@@ -21,7 +21,19 @@ test("One to One call using matrix rtc 2.0 aka sticky events", async ({
 
   await page.goto("/");
 
-  await SpaHelpers.createCall(page, "John Doe", "HelloCall", true, "2_0");
+  let androlHasSentStickyEvent = false;
+
+  await page.route(
+    "**/_matrix/client/v3/rooms/**/send/org.matrix.msc4143.rtc.member/**",
+    async (route, req) => {
+      androlHasSentStickyEvent = !!new URL(req.url()).searchParams.get(
+        "org.matrix.msc4354.sticky_duration_ms",
+      );
+      return route.continue();
+    },
+  );
+
+  await SpaHelpers.createCall(page, "Androl", "HelloCall", true, "2_0");
 
   const inviteLink = await SpaHelpers.getCallInviteLink(page);
 
@@ -33,8 +45,29 @@ test("One to One call using matrix rtc 2.0 aka sticky events", async ({
 
   await guestPage.goto("/");
 
-  await SpaHelpers.joinCallFromInviteLink(guestPage, inviteLink);
+  let pevaraHasSentStickyEvent = false;
+
+  await guestPage.route(
+    "**/_matrix/client/v3/rooms/**/send/org.matrix.msc4143.rtc.member/**",
+    async (route, req) => {
+      pevaraHasSentStickyEvent = !!new URL(req.url()).searchParams.get(
+        "org.matrix.msc4354.sticky_duration_ms",
+      );
+      return route.continue();
+    },
+  );
+
+  await SpaHelpers.joinCallFromInviteLink(
+    guestPage,
+    inviteLink,
+    "Pevara",
+    "2_0",
+  );
 
   await SpaHelpers.expectVideoTilesCount(page, 2);
   await SpaHelpers.expectVideoTilesCount(guestPage, 2);
+
+  // Assert both sides have sent sticky membership events
+  expect(androlHasSentStickyEvent).toEqual(true);
+  expect(pevaraHasSentStickyEvent).toEqual(true);
 });