diff --git a/playwright/fixtures/widget-user.ts b/playwright/fixtures/widget-user.ts
index 891b18ff..ee5b1779 100644
--- a/playwright/fixtures/widget-user.ts
+++ b/playwright/fixtures/widget-user.ts
@@ -73,6 +73,14 @@ export const widgetTest = test.extend<MyFixtures>({
       reducedMotion: "reduce",
     });
     const ewPage1 = await user1Context.newPage();
+    await ewPage1.evaluate(() => {
+      window.mxSettingsStore.setValue(
+        "Developer.elementCallUrl",
+        null,
+        "device",
+        "https://localhost:3000/room",
+      );
+    });
     // Register the first user
     await ewPage1.goto("http://localhost:8081/#/welcome");
     await ewPage1.getByRole("link", { name: "Create Account" }).click();
@@ -100,6 +108,14 @@ export const widgetTest = test.extend<MyFixtures>({
       reducedMotion: "reduce",
     });
     const ewPage2 = await user2Context.newPage();
+    await ewPage2.evaluate(() => {
+      window.mxSettingsStore.setValue(
+        "Developer.elementCallUrl",
+        null,
+        "device",
+        "https://localhost:3000/room",
+      );
+    });
     // Register the second user
     await ewPage2.goto("http://localhost:8081/#/welcome");
     await ewPage2.getByRole("link", { name: "Create Account" }).click();
diff --git a/playwright/global.d.ts b/playwright/global.d.ts
index 8620546f..93f38729 100644
--- a/playwright/global.d.ts
+++ b/playwright/global.d.ts
@@ -12,5 +12,13 @@ declare global {
     mxMatrixClientPeg: {
       get(): Matrix.MatrixClient;
     };
+    mxSettingsStore: {
+      setValue: (
+        settingKey: string,
+        room: string | null,
+        level: string,
+        setting: string,
+      ) => void;
+    };
   }
 }