diff --git a/.cmb/config.js b/.cmb/config.js
index ff69997..05b2efd 100644
--- a/.cmb/config.js
+++ b/.cmb/config.js
@@ -13,7 +13,7 @@ module.exports = {
     },
     // each method is the imitation of the usage of some archiver
     archivers: {
-        gzip: archive('gzip -k [FILE_PATH] && mv [FILE_PATH].gz [TO_ARCH_CSS]', '.gz')
+        gzip: archive('gzip -k [FILE_PATH]', '.gz')
     },
     // input and output
     paths: {
diff --git a/lib/utils.js b/lib/utils.js
index 449bbd9..6007d61 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -62,7 +62,9 @@ function archive(command, fileSuffix) {
 
         benchLogger('i', '[a] Exec bash script --> ', _command);
 
+        shell.exec('ulimit -n 8192');
         shell.exec(_command);
+        shell.mv('-f', filePath + fileSuffix, toArchCSS);
 
         return fs.getFileSize(path.join(toArchCSS, fileName + fileSuffix));
     };