diff --git a/cli.js b/cli.js
index 85d097c..543f642 100644
--- a/cli.js
+++ b/cli.js
@@ -1,24 +1,24 @@
 #!/usr/bin/env node
-'use strict';
+'use strict'
 
-const svgdir2sprite = require('./');
+const svgdir2sprite = require('./')
 const argv = require('yargs')
-.demandCommand(1, 'Warning: Please set a source directory for loose svg\'s')
-.example('$0 ./svgs', ':: Output to console')
-.example('$0 ./svgs ./build/file.svg', ':: Output to file')
-.alias('help', 'h')
-.help()
-.version()
-.wrap(process.stdout.columns)
-.argv;
+  .demandCommand(1, 'Warning: Please set a source directory for loose svg\'s')
+  .example('$0 ./svgs', ':: Output to console')
+  .example('$0 ./svgs ./build/file.svg', ':: Output to file')
+  .alias('help', 'h')
+  .help()
+  .version()
+  .wrap(process.stdout.columns)
+  .argv
 
-let [src, dest] = argv._;
+let [src, dest] = argv._
 
 svgdir2sprite(src, dest)
-.then((svgContents) => {
-  if (dest) {
-    console.log('Spritesheet successfully generated as ' + dest);
-  } else {
-    console.log(svgContents);
-  }
-}); 
+  .then((svgContents) => {
+    if (dest) {
+      console.log('Spritesheet successfully generated as ' + dest)
+    } else {
+      console.log(svgContents)
+    }
+  })
diff --git a/index.js b/index.js
index ef0f6bd..a7eba0b 100644
--- a/index.js
+++ b/index.js
@@ -1,50 +1,50 @@
-const fs = require('fs');
-const async = require('async');
-const svgSprite = require('svg2sprite');
-const sprite = svgSprite.collection();
+const fs = require('fs')
+const async = require('async')
+const svgSprite = require('svg2sprite')
+const sprite = svgSprite.collection()
 
-const isSVG = (filename) => filename.split('.').pop() === 'svg';
-const iconName = (filename) => filename.split('.')[0];
+const isSVG = (filename) => filename.split('.').pop() === 'svg'
+const iconName = (filename) => filename.split('.')[0]
 
-function saveSpritesheet(path, spritesheet) {
-  if(path.indexOf('.svg') === -1) throw 'Error: Please specify a filename ending with .svg';
+function saveSpritesheet (path, spritesheet) {
+  if (path.indexOf('.svg') === -1) throw new Error('Error: Please specify a filename ending with .svg')
 
-  fs.writeFile(path, spritesheet, (error) => { if (error) throw error });
+  fs.writeFile(path, spritesheet, (error) => { if (error) throw error })
 }
 
-function readSprite(filename, file) {
-  sprite.add(iconName(filename), `<svg>${file}</svg>`);
+function readSprite (filename, file) {
+  sprite.add(iconName(filename), `<svg>${file}</svg>`)
 }
 
-function allSpritesRead(pathBuild) {
-  let spritesheet = sprite.compile();
+function allSpritesRead (pathBuild) {
+  let spritesheet = sprite.compile()
 
   if (pathBuild) {
-    saveSpritesheet(pathBuild, spritesheet);
+    saveSpritesheet(pathBuild, spritesheet)
   }
 
-  return spritesheet;
+  return spritesheet
 }
 
-function generate(pathSrc, pathBuild) {
+function generate (pathSrc, pathBuild) {
   return new Promise((resolve, reject) => {
     fs.readdir(pathSrc, (error, filenames) => {
-      if (error) reject(error);
+      if (error) reject(error)
 
       async.eachSeries(filenames.filter(isSVG), (filename, cb) => {
         fs.readFile(pathSrc + filename, (error, fileData) => {
-          if (error) reject(error);
+          if (error) reject(error)
 
-          readSprite(filename, fileData);
-          cb(fileData);
-        });
+          readSprite(filename, fileData)
+          cb(fileData)
+        })
       }, (error) => {
-        if (error) reject(error);
+        if (error) reject(error)
 
-        resolve(allSpritesRead(pathBuild));
-      });
-    });
-  });
+        resolve(allSpritesRead(pathBuild))
+      })
+    })
+  })
 }
 
-module.exports = generate;
+module.exports = generate
diff --git a/package.json b/package.json
index 3d99fa9..70f325d 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,9 @@
   "bin": {
     "svgdir2sprite": "./cli.js"
   },
+  "scripts": {
+    "lint": "eslint ./*.js"
+  },
   "keywords": [
     "svg",
     "symbol",
@@ -23,5 +26,12 @@
     "fs": "0.0.1-security",
     "svg2sprite": "^2.0.1",
     "yargs": "^7.1.0"
+  },
+  "devDependencies": {
+    "eslint-config-standard": "^11.0.0",
+    "eslint-plugin-import": "^2.9.0",
+    "eslint-plugin-node": "^6.0.0",
+    "eslint-plugin-promise": "^3.6.0",
+    "eslint-plugin-standard": "^3.0.1"
   }
 }