diff --git a/src/util.js b/src/util.js
index 18e893011a0629c4173fd37ea1167c1b6b112293..b4f4e2911d4ed12b2417ccc78e05d1d70648dd5f 100644
--- a/src/util.js
+++ b/src/util.js
@@ -374,7 +374,7 @@ function copyFile(inputFile, outputFile) {
       fs.existsSync(outputFile)) {
         copyJsonFile(inputFile, outputFile);
     } else if (!fs.existsSync(outputFile)){
-      fs.writeFileSync(outputFile, fs.readFileSync(inputFile, 'utf-8'));
+      fs.writeFileSync(outputFile, fs.readFileSync(inputFile));
     }
   } catch (err) {
     throw err;