diff --git a/.gitignore b/.gitignore
index a572eb1..0561f4c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@ node_modules
 temp
 docs/.vitepress/cache
 storage
+fixtures/generated
diff --git a/bin/cli.ts b/bin/cli.ts
index 2d2f39b..8b8d394 100644
--- a/bin/cli.ts
+++ b/bin/cli.ts
@@ -3,7 +3,7 @@ import { version } from '../package.json'
 
 // import { generate } from '../src/generate'
 
-const cli = new CAC('dts')
+const cli = new CAC('dtsx')
 
 cli
   .command('generate', 'Start the Reverse Proxy Server')
diff --git a/dts.config.ts b/dts.config.ts
index 39fb029..1bf696f 100644
--- a/dts.config.ts
+++ b/dts.config.ts
@@ -1,6 +1,9 @@
-export default {
+import type { DtsGenerationOption } from './src/types'
+
+const config: DtsGenerationOption = {
   cwd: './',
   root: './src',
+  entrypoints: ['**/*.ts'],
   outdir: './dist',
   keepComments: true,
   clean: true,
@@ -8,3 +11,5 @@ export default {
   // bundle: true,
   // minify: true,
 }
+
+export default config
diff --git a/src/config.ts b/src/config.ts
index b8a79f9..2ad3a89 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -9,7 +9,7 @@ export const config: DtsGenerationConfig = (await loadConfig({
   defaultConfig: {
     cwd: process.cwd(),
     root: './src',
-    file: '**/*.ts',
+    entrypoints: ['**/*.ts'],
     outdir: './dist',
     keepComments: true,
     clean: true,
diff --git a/src/generate.ts b/src/generate.ts
index 98980bc..ae6c002 100644
--- a/src/generate.ts
+++ b/src/generate.ts
@@ -1,12 +1,13 @@
 import type { DtsGenerationConfig, DtsGenerationOption } from './types'
 import { rm, mkdir } from 'node:fs/promises'
-import { join, relative, dirname } from 'node:path'
+import { join, relative, dirname, parse } from 'node:path'
 import { config } from './config'
 import { writeToFile, getAllTypeScriptFiles, checkIsolatedDeclarations } from './utils'
 import { extractTypeFromSource } from './extract'
 import { glob } from 'tinyglobby'
 
 export async function generateDeclarationsFromFiles(options: DtsGenerationConfig): Promise<void> {
+  // console.log('Generating declaration files...', options)
   try {
     // Check for isolatedModules setting
     const isIsolatedDeclarations = await checkIsolatedDeclarations(options)
@@ -21,8 +22,8 @@ export async function generateDeclarationsFromFiles(options: DtsGenerationConfig
     }
 
     let files: string[]
-    if (options.file) {
-      files = await glob(options.file, { cwd: options.root ?? options.cwd, absolute: true })
+    if (options.entrypoints) {
+      files = await glob(options.entrypoints, { cwd: options.root ?? options.cwd, absolute: true })
     } else {
       files = await getAllTypeScriptFiles(options.root)
     }
@@ -35,7 +36,8 @@ export async function generateDeclarationsFromFiles(options: DtsGenerationConfig
 
       if (fileDeclarations) {
         const relativePath = relative(options.root, file)
-        const outputPath = join(options.outdir, relativePath.replace(/\.ts$/, '.d.ts'))
+        const parsedPath = parse(relativePath)
+        const outputPath = join(options.outdir, `${parsedPath.name}.d.ts`)
 
         // Ensure the directory exists
         await mkdir(dirname(outputPath), { recursive: true })
diff --git a/src/types.ts b/src/types.ts
index defc7b8..02b02a1 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -6,7 +6,7 @@
 export interface DtsGenerationConfig {
   cwd: string
   root: string
-  file: string
+  entrypoints: string[]
   outdir: string
   keepComments: boolean
   clean: boolean
diff --git a/test/dts.test.ts b/test/dts.test.ts
index 24abfad..d3260bc 100644
--- a/test/dts.test.ts
+++ b/test/dts.test.ts
@@ -14,9 +14,9 @@ describe('dts-generation', () => {
     const example = 'example-1'
 
     const config: DtsGenerationOption = {
-      file: join(inputDir, `${example}.ts`),
+      entrypoints: [join(inputDir, `${example}.ts`)],
       outdir: generatedDir,
-      clean: true,
+      clean: false,
       tsconfigPath: join(__dirname, '..', 'tsconfig.json'),
     }
 
@@ -35,9 +35,9 @@ describe('dts-generation', () => {
     const example = 'example-2'
 
     const config: DtsGenerationOption = {
-      file: join(inputDir, `${example}.ts`),
+      entrypoints: [join(inputDir, `${example}.ts`)],
       outdir: generatedDir,
-      clean: true,
+      clean: false,
       tsconfigPath: join(__dirname, '..', 'tsconfig.json'),
     }
 
@@ -56,9 +56,9 @@ describe('dts-generation', () => {
     const example = 'example-3'
 
     const config: DtsGenerationOption = {
-      file: join(inputDir, `${example}.ts`),
+      entrypoints: [join(inputDir, `${example}.ts`)],
       outdir: generatedDir,
-      clean: true,
+      clean: false,
       tsconfigPath: join(__dirname, '..', 'tsconfig.json'),
     }
 
@@ -77,9 +77,9 @@ describe('dts-generation', () => {
     const example = 'example-4'
 
     const config: DtsGenerationOption = {
-      file: join(inputDir, `${example}.ts`),
+      entrypoints: [join(inputDir, `${example}.ts`)],
       outdir: generatedDir,
-      clean: true,
+      clean: false,
       tsconfigPath: join(__dirname, '..', 'tsconfig.json'),
     }
 
@@ -98,9 +98,9 @@ describe('dts-generation', () => {
     const example = 'example-5'
 
     const config: DtsGenerationOption = {
-      file: join(inputDir, `${example}.ts`),
+      entrypoints: [join(inputDir, `${example}.ts`)],
       outdir: generatedDir,
-      clean: true,
+      clean: false,
       tsconfigPath: join(__dirname, '..', 'tsconfig.json'),
     }
 
@@ -119,7 +119,6 @@ describe('dts-generation', () => {
     // Clean up generated files
     try {
       await rm(generatedDir, { recursive: true, force: true })
-      console.log('Cleaned up generated files')
     } catch (error) {
       console.error('Error cleaning up generated files:', error)
     }