diff --git a/docs/src/test-api/class-testconfig.md b/docs/src/test-api/class-testconfig.md
index e6393b2758..8503c212f5 100644
--- a/docs/src/test-api/class-testconfig.md
+++ b/docs/src/test-api/class-testconfig.md
@@ -172,11 +172,11 @@ Filter test cases by function. `TestFilter` can either be predicate function or
 import { defineConfig } from '@playwright/test';
 
 export default defineConfig({
-  filter: (test) => test.title === 'some test',
+  filter: test => test.title === 'some test',
   // or
-  filter: { filterTests: (tests) => tests.filter((test, index) => index % 2 === 0) },
+  filter: { filterTests: tests => tests.filter((test, index) => index % 2 === 0) },
   // or
-  filter: { filterTestGroups: (testgroups) => testgroups.filter((testgroups, index) => index % 2 === 0) },
+  filter: { filterTestGroups: testgroups => testgroups.filter((testgroups, index) => index % 2 === 0) },
 });
 ```
 
diff --git a/packages/playwright/types/test.d.ts b/packages/playwright/types/test.d.ts
index 91b9bdb37d..917a5e6fde 100644
--- a/packages/playwright/types/test.d.ts
+++ b/packages/playwright/types/test.d.ts
@@ -1047,11 +1047,11 @@ interface TestConfig<TestArgs = {}, WorkerArgs = {}> {
    * import { defineConfig } from '@playwright/test';
    *
    * export default defineConfig({
-   *   filter: (test) => test.title === 'some test',
+   *   filter: test => test.title === 'some test',
    *   // or
-   *   filter: { filterTests: (tests) => tests.filter((test, index) => index % 2 === 0) },
+   *   filter: { filterTests: tests => tests.filter((test, index) => index % 2 === 0) },
    *   // or
-   *   filter: { filterTestGroups: (testgroups) => testgroups.filter((testgroups, index) => index % 2 === 0) },
+   *   filter: { filterTestGroups: testgroups => testgroups.filter((testgroups, index) => index % 2 === 0) },
    * });
    * ```
    *