diff --git a/website/docs/en/config/test/includeSource.mdx b/website/docs/en/config/test/includeSource.mdx
index 96c48a27..b1a12872 100644
--- a/website/docs/en/config/test/includeSource.mdx
+++ b/website/docs/en/config/test/includeSource.mdx
@@ -7,7 +7,7 @@ In-source testing is where the test code lives within the same file as the sourc
 
 You can define a list of glob patterns that match your in-source test files via `includeSource` configuration.
 
-```ts
+```ts title="rstest.config.ts"
 import { defineConfig } from '@rstest/core';
 
 export default defineConfig({
diff --git a/website/docs/zh/config/test/includeSource.mdx b/website/docs/zh/config/test/includeSource.mdx
index cfc1a0b3..59a176ab 100644
--- a/website/docs/zh/config/test/includeSource.mdx
+++ b/website/docs/zh/config/test/includeSource.mdx
@@ -7,7 +7,7 @@
 
 你可以通过 `includeSource` 配置，定义一组用于匹配内联测试文件的 glob 模式列表。
 
-```ts
+```ts title="rstest.config.ts"
 import { defineConfig } from '@rstest/core';
 
 export default defineConfig({