diff --git a/packages/cli/src/index.ts b/packages/cli/src/index.ts
index 0d9dfdb241..9248ccb57c 100644
--- a/packages/cli/src/index.ts
+++ b/packages/cli/src/index.ts
@@ -17,8 +17,10 @@ let uno: UnoGenerator
 
 const fileCache = new Map<string, string>()
 
+const getAbsolutePath = (file: string) => resolve(process.cwd(), file)
+
 export async function generate(options: ResolvedCliOptions) {
-  const outFile = options.outFile ?? resolve(process.cwd(), 'uno.css')
+  const outFile = options.outFile ?? getAbsolutePath('uno.css')
   const { css, matched } = await uno.generate([...fileCache].join('\n'))
 
   const dir = dirname(outFile)
@@ -57,7 +59,8 @@ export async function build(_options: CliOptions) {
   const files = await fg(options.patterns)
   await Promise.all(
     files.map(async (file) => {
-      fileCache.set(file, await fs.readFile(file, 'utf8'))
+      const absolutePath = getAbsolutePath(file)
+      fileCache.set(absolutePath, await fs.readFile(absolutePath, 'utf8'))
     }),
   )
 
@@ -103,10 +106,11 @@ export async function build(_options: CliOptions) {
       else {
         consola.log(`${green(type)} ${dim(file)}`)
 
+        const absolutePath = getAbsolutePath(file)
         if (type.startsWith('unlink'))
-          fileCache.delete(file)
+          fileCache.delete(absolutePath)
         else
-          fileCache.set(file, await fs.readFile(file, 'utf8'))
+          fileCache.set(absolutePath, await fs.readFile(absolutePath, 'utf8'))
       }
 
       debouncedBuild()
diff --git a/test/__snapshots__/cli.test.ts.snap b/test/__snapshots__/cli.test.ts.snap
index b5d70d2137..e4dd63bc9d 100644
--- a/test/__snapshots__/cli.test.ts.snap
+++ b/test/__snapshots__/cli.test.ts.snap
@@ -14,3 +14,10 @@ exports[`cli > supports unocss.config.js 1`] = `
 /* layer: shortcuts */
 .box{margin-left:auto;margin-right:auto;max-width:80rem;border-radius:0.375rem;--un-bg-opacity:1;background-color:rgba(243,244,246,var(--un-bg-opacity));padding:1rem;--un-shadow:var(--un-shadow-inset) 0 1px 2px 0 var(--un-shadow-color, rgba(0,0,0,0.05));box-shadow:var(--un-ring-offset-shadow, 0 0 #0000), var(--un-ring-shadow, 0 0 #0000), var(--un-shadow);}"
 `;
+
+exports[`cli > uno.css exclude initialized class after changing file 1`] = `
+"/* layer: preflights */
+*,::before,::after{--un-rotate:0;--un-rotate-x:0;--un-rotate-y:0;--un-rotate-z:0;--un-scale-x:1;--un-scale-y:1;--un-scale-z:1;--un-skew-x:0;--un-skew-y:0;--un-translate-x:0;--un-translate-y:0;--un-translate-z:0;--un-transform:translateX(var(--un-translate-x)) translateY(var(--un-translate-y)) translateZ(var(--un-translate-z)) rotate(var(--un-rotate)) rotateX(var(--un-rotate-x)) rotateY(var(--un-rotate-y)) rotateZ(var(--un-rotate-z)) skewX(var(--un-skew-x)) skewY(var(--un-skew-y)) scaleX(var(--un-scale-x)) scaleY(var(--un-scale-y)) scaleZ(var(--un-scale-z));--un-pan-x:var(--un-empty,/*!*/ /*!*/);--un-pan-y:var(--un-empty,/*!*/ /*!*/);--un-pinch-zoom:var(--un-empty,/*!*/ /*!*/);--un-touch-action:var(--un-pan-x) var(--un-pan-y) var(--un-pinch-zoom);--un-scroll-snap-strictness:proximity;--un-ordinal:var(--un-empty,/*!*/ /*!*/);--un-slashed-zero:var(--un-empty,/*!*/ /*!*/);--un-numeric-figure:var(--un-empty,/*!*/ /*!*/);--un-numeric-spacing:var(--un-empty,/*!*/ /*!*/);--un-numeric-fraction:var(--un-empty,/*!*/ /*!*/);--un-font-variant-numeric:var(--un-ordinal) var(--un-slashed-zero) var(--un-numeric-figure) var(--un-numeric-spacing) var(--un-numeric-fraction);--un-border-spacing-x:0;--un-border-spacing-y:0;--un-ring-offset-shadow:0 0 #0000;--un-ring-shadow:0 0 #0000;--un-shadow-inset:var(--un-empty,/*!*/ /*!*/);--un-shadow:0 0 #0000;--un-ring-inset:var(--un-empty,/*!*/ /*!*/);--un-ring-offset-width:0px;--un-ring-offset-color:#fff;--un-ring-width:0px;--un-ring-color:rgba(147,197,253,0.5);--un-blur:var(--un-empty,/*!*/ /*!*/);--un-brightness:var(--un-empty,/*!*/ /*!*/);--un-contrast:var(--un-empty,/*!*/ /*!*/);--un-drop-shadow:var(--un-empty,/*!*/ /*!*/);--un-grayscale:var(--un-empty,/*!*/ /*!*/);--un-hue-rotate:var(--un-empty,/*!*/ /*!*/);--un-invert:var(--un-empty,/*!*/ /*!*/);--un-saturate:var(--un-empty,/*!*/ /*!*/);--un-sepia:var(--un-empty,/*!*/ /*!*/);--un-filter:var(--un-blur) var(--un-brightness) var(--un-contrast) var(--un-drop-shadow) var(--un-grayscale) var(--un-hue-rotate) var(--un-invert) var(--un-saturate) var(--un-sepia);--un-backdrop-blur:var(--un-empty,/*!*/ /*!*/);--un-backdrop-brightness:var(--un-empty,/*!*/ /*!*/);--un-backdrop-contrast:var(--un-empty,/*!*/ /*!*/);--un-backdrop-grayscale:var(--un-empty,/*!*/ /*!*/);--un-backdrop-hue-rotate:var(--un-empty,/*!*/ /*!*/);--un-backdrop-invert:var(--un-empty,/*!*/ /*!*/);--un-backdrop-opacity:var(--un-empty,/*!*/ /*!*/);--un-backdrop-saturate:var(--un-empty,/*!*/ /*!*/);--un-backdrop-sepia:var(--un-empty,/*!*/ /*!*/);--un-backdrop-filter:var(--un-backdrop-blur) var(--un-backdrop-brightness) var(--un-backdrop-contrast) var(--un-backdrop-grayscale) var(--un-backdrop-hue-rotate) var(--un-backdrop-invert) var(--un-backdrop-opacity) var(--un-backdrop-saturate) var(--un-backdrop-sepia);}
+/* layer: default */
+.bg-blue{--un-bg-opacity:1;background-color:rgba(96,165,250,var(--un-bg-opacity));}"
+`;
diff --git a/test/cli.test.ts b/test/cli.test.ts
index 17d7a73fb2..0aa52c3424 100644
--- a/test/cli.test.ts
+++ b/test/cli.test.ts
@@ -6,6 +6,29 @@ import { execa } from 'execa'
 export const tempDir = resolve('.temp')
 export const cli = resolve(__dirname, '../packages/cli/src/cli.ts')
 
+function createWaiting() {
+  const loop = () => { }
+  let $resolve = loop
+  let $reject = loop
+  const waiting = new Promise<void>((resolve, reject) => {
+    $resolve = resolve
+    $reject = reject
+  })
+  return {
+    waiting,
+    $resolve,
+    $reject,
+  }
+}
+
+function sleep(time = 300) {
+  return new Promise<void>((resolve) => {
+    setTimeout(() => {
+      resolve()
+    }, time)
+  })
+}
+
 beforeAll(async () => {
   await fs.remove(tempDir)
 })
@@ -23,6 +46,28 @@ describe('cli', () => {
     expect(output).toMatchSnapshot()
   })
 
+  it('uno.css exclude initialized class after changing file', async () => {
+    const fileName = 'views/index.html'
+    const initializedContent = '<div class="bg-blue"></div>'
+    const changedContent = '<div class="bg-red"></div>'
+    const testDir = getTestDir()
+    const absolutePathOfFile = resolve(testDir, fileName)
+    await fs.outputFile(absolutePathOfFile, initializedContent)
+    const subProcess = runAsyncChildProcess(testDir, './views/**/*', '-w')
+    const { stdout } = subProcess
+    const { waiting, $resolve } = createWaiting()
+    stdout!.on('data', (data) => {
+      if (data.toString().includes('[info] Watching for changes'))
+        $resolve()
+    })
+    await waiting
+    await fs.writeFile(absolutePathOfFile, changedContent)
+    await sleep(2022)
+    subProcess.cancel()
+    const output = await readUnocssFile(testDir)
+    expect(output).toMatchSnapshot()
+  })
+
   it('supports unocss.config.js', async () => {
     const { output } = await runCli({
       'views/index.html': '<div class="box"></div>',
@@ -38,25 +83,41 @@ export default defineConfig({
   })
 })
 
-async function runCli(files: Record<string, string>) {
-  const testDir = resolve(tempDir, Math.round(Math.random() * 100000).toString())
+function getTestDir() {
+  return resolve(tempDir, Math.round(Math.random() * 100000).toString())
+}
 
-  await Promise.all(
+function initalOutputFiles(testDir: string, files: Record<string, string>) {
+  return Promise.all(
     Object.entries(files).map(([path, content]) =>
       fs.outputFile(resolve(testDir, path), content, 'utf8'),
     ),
   )
+}
 
-  const { exitCode, stdout, stderr } = await execa('npx', ['esno', cli, 'views/**/*'], {
-    cwd: testDir,
+function runAsyncChildProcess(cwd: string, ...args: string[]) {
+  return execa('npx', ['esno', cli, ...args], {
+    cwd,
     // stdio: 'inherit',
   })
+}
+
+function readUnocssFile(testDir: string) {
+  return fs.readFile(resolve(testDir, 'uno.css'), 'utf8')
+}
+
+async function runCli(files: Record<string, string>) {
+  const testDir = getTestDir()
+
+  await initalOutputFiles(testDir, files)
+
+  const { exitCode, stdout, stderr } = await runAsyncChildProcess(testDir, 'views/**/*')
 
   const logs = stdout + stderr
   if (exitCode !== 0)
     throw new Error(logs)
 
-  const output = await fs.readFile(resolve(testDir, 'uno.css'), 'utf8')
+  const output = await readUnocssFile(testDir)
 
   return {
     output,