diff --git a/lib/index.js b/lib/index.js
index 91048ef..62f11b9 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -117,6 +117,7 @@ function run() {
     }
 
     await Promise.all([runChild && runChild.kill(), aliasReplace()]);
+    debug('Fork new child process');
     runChild && runChild.forkChild();
   }, 1000);
 
diff --git a/lib/process.js b/lib/process.js
index ea5edb2..d4a8007 100644
--- a/lib/process.js
+++ b/lib/process.js
@@ -117,6 +117,10 @@ const forkRun = (runCmdPath, runArgs = [], options = {}) => {
   const killRunningChild = async signal => {
     if (isWin) {
       await new Promise(resolve => {
+        if (!runChild || runChild.exitCode !== null) {
+          // has exited
+          resolve();
+        }
         runChild.once('exit', (code, signal) => {
           resolve();
         });
diff --git a/test/fixtures/base/run.js b/test/fixtures/base/run.js
index b23610a..c504c9e 100644
--- a/test/fixtures/base/run.js
+++ b/test/fixtures/base/run.js
@@ -1 +1 @@
-process.send({ type: 'ready' });
\ No newline at end of file
+process.send({ type: 'ready' });
diff --git a/test/fixtures/unreject_error/run.js b/test/fixtures/unreject_error/run.js
new file mode 100644
index 0000000..522ca1e
--- /dev/null
+++ b/test/fixtures/unreject_error/run.js
@@ -0,0 +1,2 @@
+require('./dist/a.js')
+process.send({ type: 'ready' });
diff --git a/test/fixtures/unreject_error/tsconfig.json b/test/fixtures/unreject_error/tsconfig.json
new file mode 100644
index 0000000..b3be0de
--- /dev/null
+++ b/test/fixtures/unreject_error/tsconfig.json
@@ -0,0 +1,21 @@
+{
+  "compilerOptions": {
+    "target": "es2018", // target es2018
+    "module": "commonjs",
+    "moduleResolution": "node",
+    "experimentalDecorators": true,
+    "emitDecoratorMetadata": true,
+    "inlineSourceMap":true,
+    "noImplicitThis": true,
+    "noUnusedLocals": true,
+    "stripInternal": true,
+    "skipLibCheck": true,
+    "pretty": true,
+    "outDir": "dist"
+  },
+  "exclude": [
+    "dist",
+    "node_modules",
+    "test"
+  ]
+}
diff --git a/test/index.test.js b/test/index.test.js
index cdc44a4..1ce828b 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -197,4 +197,48 @@ describe('/test/index.js', () => {
       });
     });
   });
+
+  it('should restart when running failed with error and file changed soon', async () => {
+    // prepare
+    const runPath = join(__dirname, 'fixtures/unreject_error');
+    const file = join(runPath, 'a.ts');
+    await removeFile([
+      file,
+      join(runPath, 'dist/a.js'),
+    ]);
+
+    const tpl = `
+(async () => {
+  throw new Error('error')
+})();
+`;
+
+    // write to a.ts
+    writeFileSync(file, tpl);
+
+    const cp = await execa('node', [mtscPath, '--watch', '--run', './run.js'], {
+      cwd: runPath,
+    });
+
+    await sleep(1000);
+
+    // change file
+    writeFileSync(file, 'console.log("b")');
+
+    await new Promise((resolve, reject) => {
+      cp.on('exit', code => {
+        try {
+          expect(existsSync(join(runPath, 'dist/a.js'))).toBeTruthy();
+          expect(readFileSync(join(runPath, 'dist/a.js'), 'utf-8')).toMatch(/"b"/);
+          resolve();
+        } catch (err) {
+          reject(err);
+        }
+      });
+
+      setTimeout(() => {
+        cp.kill();
+      }, 3000);
+    });
+  });
 });