diff --git a/run.js b/run.js
index fa0b3bf..a2fb1d5 100644
--- a/run.js
+++ b/run.js
@@ -12,8 +12,10 @@ function handleExit(code, stderr, errorCallback) {
 }
 
 async function run({ watch, dir, silent, command, errorCallback }) {
-    return new Promise((resolve, reject) => {
+    return new Promise(async (resolve, reject) => {
         if (command !== '') {
+            if (dir) await execa.command('npx copyfiles -u 1 src/**/*.css ' + dir);
+
             const child = execa.command(command, {
                 ... {
                     buffer: false,
diff --git a/tscfy.js b/tscfy.js
index d6d0a74..0a89f33 100644
--- a/tscfy.js
+++ b/tscfy.js
@@ -39,7 +39,7 @@ async function tscfy(options = {}) {
         await run({ watch, command, silent, errorCallback });
     }
 
-    await execa.command('npx copyfiles -u 1 src/**/*.d.ts lib/ts4.2')
+    await execa.command('npx copyfiles -u 1 src/**/*.d.ts lib/ts4.2');
 
     if (!watch) {
         await execa.command('npx downlevel-dts lib/ts4.2 lib/ts3.9 --to=3.9');