diff --git a/website/docs/en/config/lib/bundle.mdx b/website/docs/en/config/lib/bundle.mdx
index 5705badf0..d66680f92 100644
--- a/website/docs/en/config/lib/bundle.mdx
+++ b/website/docs/en/config/lib/bundle.mdx
@@ -55,7 +55,7 @@ export default {
 };
 ```
 
-You can also use with an exclamation mark to exclude some files.
+You can also use with an exclamation mark to exclude some files. For example, exclude test files within the `src` folder:
 
 ```ts title="rslib.config.ts"
 export default {
@@ -67,12 +67,28 @@ export default {
   ],
   source: {
     entry: {
-      index: ['./src/**', '!**/foo.*'],
+      index: ['./src/**', '!src/**/*.test.ts'],
     },
   },
 };
 ```
 
+::: note
+
+If [DTS generation](/config/lib/dts) is enabled, remember to set [exclude](https://www.typescriptlang.org/tsconfig/#exclude) field in `tsconfig.json` to avoid generating TypeScript declaration files for the corresponding files.
+
+For example, exclude test files within the `src` folder:
+
+```json
+// tsconfig.json
+{
+  "include": ["src"],
+  "exclude": ["src/**/*.test.ts"]
+}
+```
+
+:::
+
 ## Example
 
 For below file structure of source code:
diff --git a/website/docs/zh/config/lib/bundle.mdx b/website/docs/zh/config/lib/bundle.mdx
index 241535a40..21f678bf3 100644
--- a/website/docs/zh/config/lib/bundle.mdx
+++ b/website/docs/zh/config/lib/bundle.mdx
@@ -53,7 +53,7 @@ export default {
 };
 ```
 
-你也可以使用感叹号来排除一些文件。
+你也可以使用感叹号来排除一些文件。例如，排除 `src` 文件夹中的测试文件：
 
 ```ts title="rslib.config.ts"
 export default {
@@ -65,12 +65,28 @@ export default {
   ],
   source: {
     entry: {
-      index: ['./src/**', '!**/foo.*'],
+      index: ['./src/**', '!src/**/*.test.ts'],
     },
   },
 };
 ```
 
+::: note
+
+当开启 [类型生成](/config/lib/dts) 时，记得在 `tsconfig.json` 中设置 [exclude](https://www.typescriptlang.org/tsconfig/#exclude) 字段，以避免相应的文件生成 TypeScript 类型声明文件。
+
+例如，排除 `src` 文件夹中的测试文件：
+
+```json
+// tsconfig.json
+{
+  "include": ["src"],
+  "exclude": ["src/**/*.test.ts"]
+}
+```
+
+:::
+
 ## Example
 
 对于以下的源代码文件结构：