diff --git a/src/util.js b/src/util.js
index e0d2399afeef41c2e40c4adfff2a9cde52d73756..f51492922c5865ed74cb342afdda21535ab406a3 100644
--- a/src/util.js
+++ b/src/util.js
@@ -378,7 +378,7 @@ 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;