diff --git a/docs/src/mock.md b/docs/src/mock.md
index bf6f57a183..bbb38564af 100644
--- a/docs/src/mock.md
+++ b/docs/src/mock.md
@@ -568,7 +568,7 @@ To get started, enable the `mockingProxy` option in your Playwright config:
 
 ```js
 export default defineConfig({
-  use: { mockingProxy: true }
+  use: { mockingProxy: "inject-via-header" }
 });
 ```
 
diff --git a/tests/playwright-test/playwright.mockingproxy.spec.ts b/tests/playwright-test/playwright.mockingproxy.spec.ts
index 51a3636402..aecfc26a49 100644
--- a/tests/playwright-test/playwright.mockingproxy.spec.ts
+++ b/tests/playwright-test/playwright.mockingproxy.spec.ts
@@ -21,7 +21,7 @@ const config = {
   'playwright.config.ts': `
     module.exports = {
       use: {
-        mockingProxy: true,
+        mockingProxy: "inject-via-header",
         ignoreHTTPSErrors: true,
       }
     };