diff --git a/lib/browser/api/browser-window.js b/lib/browser/api/browser-window.js
index 5e95aa2e01c9..0524c43942cb 100644
--- a/lib/browser/api/browser-window.js
+++ b/lib/browser/api/browser-window.js
@@ -82,7 +82,7 @@ BrowserWindow.prototype._init = function () {
   let isVisible = this.isVisible() && !this.isMinimized()
   let visibilityChanged = () => {
     let newState = this.isVisible() && !this.isMinimized()
-    if (isVisible != newState) {
+    if (isVisible !== newState) {
       isVisible = newState
       this.webContents.send('ELECTRON_RENDERER_WINDOW_VISIBILITY_CHANGE', isVisible ? 'visible' : 'hidden')
     }
@@ -94,8 +94,9 @@ BrowserWindow.prototype._init = function () {
   this.on('maximize', visibilityChanged)
 
   // Make renderer process have correct initial state.
-  if (!isVisible)
+  if (!isVisible) {
     this.webContents.mergeWebPreferences({visibilityState: 'hidden'})
+  }
 
   // Notify the creation of the window.
   app.emit('browser-window-created', {}, this)
diff --git a/lib/renderer/override.js b/lib/renderer/override.js
index 4b86a74de78c..1d01d2b5b759 100644
--- a/lib/renderer/override.js
+++ b/lib/renderer/override.js
@@ -232,7 +232,7 @@ if (process.visibilityState) {
 
 // Subscribe to visibilityState changes.
 ipcRenderer.on('ELECTRON_RENDERER_WINDOW_VISIBILITY_CHANGE', function (event, visibilityState) {
-  if (cachedVisibilityState != visibilityState) {
+  if (cachedVisibilityState !== visibilityState) {
     cachedVisibilityState = visibilityState
     document.dispatchEvent(new Event('visibilitychange'))
   }
@@ -241,7 +241,7 @@ ipcRenderer.on('ELECTRON_RENDERER_WINDOW_VISIBILITY_CHANGE', function (event, vi
 // Make document.hidden and document.visibilityState return the correct value.
 Object.defineProperty(document, 'hidden', {
   get: function () {
-    return cachedVisibilityState != 'visible'
+    return cachedVisibilityState !== 'visible'
   }
 })