diff --git a/docs/src/test-api/class-testoptions.md b/docs/src/test-api/class-testoptions.md
index 20dad210e7..c285430616 100644
--- a/docs/src/test-api/class-testoptions.md
+++ b/docs/src/test-api/class-testoptions.md
@@ -392,8 +392,11 @@ export default defineConfig({
 });
 ```
 
-## property: TestOptions.locale = %%-context-option-locale-%%
+## property: TestOptions.locale
 * since: v1.10
+- type: <[string]>
+
+Specify user locale, for example `en-GB`, `de-DE`, etc. Locale will affect `navigator.language` value, `Accept-Language` request header value as well as number and date formatting rules. Defaults to `en-US`. Learn more about emulation in our [emulation guide](../emulation.md#locale--timezone).
 
 **Usage**