diff --git a/lib/browser/modules/image-writer.js b/lib/browser/modules/image-writer.js
index 6a93216d..5a6c7197 100644
--- a/lib/browser/modules/image-writer.js
+++ b/lib/browser/modules/image-writer.js
@@ -127,7 +127,7 @@ imageWriter.service('ImageWriterService', function($q, $timeout, $log) {
    * ImageWriterService.setBurning(true);
    */
   this.setBurning = function(status) {
-    burning = !!status;
+    burning = Boolean(status);
   };
 
   /**
diff --git a/lib/browser/modules/selection-state.js b/lib/browser/modules/selection-state.js
index a3e625bf..9f287500 100644
--- a/lib/browser/modules/selection-state.js
+++ b/lib/browser/modules/selection-state.js
@@ -105,7 +105,7 @@ selectionState.service('SelectionStateService', function() {
    * }
    */
   this.hasDrive = function() {
-    return !!self.getDrive();
+    return Boolean(self.getDrive());
   };
 
   /**
@@ -121,7 +121,7 @@ selectionState.service('SelectionStateService', function() {
    * }
    */
   this.hasImage = function() {
-    return !!self.getImage();
+    return Boolean(self.getImage());
   };
 
   /**
diff --git a/lib/elevate.js b/lib/elevate.js
index 2dc9380c..250fd423 100644
--- a/lib/elevate.js
+++ b/lib/elevate.js
@@ -51,8 +51,7 @@ exports.require = function(app, callback) {
           // Don't keep the original parent process alive
           process.exit(0);
         });
-      }
-      else if (platform === 'win32') {
+      } else if (platform === 'win32') {
         var elevator = require('elevator');
 
         elevator.execute(process.argv, {}, function(error) {
@@ -64,8 +63,7 @@ exports.require = function(app, callback) {
           // Don't keep the original parent process alive
           process.exit(0);
         });
-      }
-      else {
+      } else {
         electron.dialog.showErrorBox(
           'You don\'t have enough permissions',
           'Please run this application as root or administrator'
diff --git a/lib/src/dialog.js b/lib/src/dialog.js
index 83914d3d..9ec73290 100644
--- a/lib/src/dialog.js
+++ b/lib/src/dialog.js
@@ -37,11 +37,17 @@ var _ = require('lodash');
 exports.selectImage = function() {
   'use strict';
 
-  return new Promise(function(resolve, reject) {
+  return new Promise(function(resolve) {
     electron.dialog.showOpenDialog({
       properties: [ 'openFile' ],
       filters: [
-        { name: 'IMG/ISO', extensions: [ 'img', 'iso' ] }
+        {
+          name: 'IMG/ISO',
+          extensions: [
+            'img',
+            'iso'
+          ]
+        }
       ]
     }, function(file) {
       return resolve(_.first(file));
diff --git a/lib/src/writer.js b/lib/src/writer.js
index 132dd432..eef12289 100644
--- a/lib/src/writer.js
+++ b/lib/src/writer.js
@@ -87,8 +87,8 @@ exports.writeImage = function(image, drive, onProgress) {
   }).then(function() {
     if (isWindows && drive.mountpoint) {
       return removedrive.ejectAsync(drive.mountpoint);
-    } else {
-      return umount.umountAsync(drive.device);
     }
+
+    return umount.umountAsync(drive.device);
   });
 };