diff --git a/lib/appdir.js b/lib/appdir.js
index 3453b4a..5518ed4 100644
--- a/lib/appdir.js
+++ b/lib/appdir.js
@@ -194,7 +194,7 @@ function _findLibraries (appdir, appbin, appexs, disklibs) {
   const exe = path.join(appdir, appbin);
 
   const o = {
-    exe: exe,
+    exe,
     lib: exe,
     libs: disklibs
   };
diff --git a/lib/config.js b/lib/config.js
index 2a0648a..f0355f5 100644
--- a/lib/config.js
+++ b/lib/config.js
@@ -291,10 +291,10 @@ function compile (conf) {
 }
 
 module.exports = {
-  compile: compile,
-  fromOptions: fromOptions,
-  fromState: fromState,
-  helpMessage: helpMessage,
-  parse: parse,
-  shortHelpMessage: shortHelpMessage
+  compile,
+  fromOptions,
+  fromState,
+  helpMessage,
+  parse,
+  shortHelpMessage
 };
diff --git a/lib/fchk.js b/lib/fchk.js
index 7e00b69..5ea1f70 100644
--- a/lib/fchk.js
+++ b/lib/fchk.js
@@ -2,7 +2,7 @@ module.exports = function (args, types) {
   if (args.length !== types.length) {
     throw new Error('Incorrect arguments count');
   }
-  const stack = Array(...args).reverse();
+  const stack = [...args].reverse();
   for (const t of types) {
     const arg = typeof stack.pop();
     if (t && arg !== t) {
diff --git a/lib/tools.js b/lib/tools.js
index 0de10ff..913b890 100644
--- a/lib/tools.js
+++ b/lib/tools.js
@@ -55,7 +55,7 @@ async function execProgram (bin, arg, opt) {
       resolve({
         stdout: _out.toString(),
         stderr: _err.toString(),
-        code: code
+        code
       });
     });
   });
@@ -185,11 +185,11 @@ async function zip (cwd, ofile, src) {
   if (use7zip) {
     const zipFile = ofile + '.zip';
     const args = ['a', zipFile, src];
-    await execProgram(getTool('7z'), args, { cwd: cwd });
+    await execProgram(getTool('7z'), args, { cwd });
     await renameAsync(zipFile, ofile);
   } else {
     const args = ['-qry', ofile, src];
-    await execProgram(getTool('zip'), args, { cwd: cwd });
+    await execProgram(getTool('zip'), args, { cwd });
   }
 }