diff --git a/src/vector/platform/ElectronPlatform.js b/src/vector/platform/ElectronPlatform.js
index 9c857e35..82ef0b51 100644
--- a/src/vector/platform/ElectronPlatform.js
+++ b/src/vector/platform/ElectronPlatform.js
@@ -20,13 +20,11 @@ limitations under the License.
 import VectorBasePlatform from './VectorBasePlatform';
 import dis from 'matrix-react-sdk/lib/dispatcher';
 import q from 'q';
-
-const electron = require('electron');
-const remote = electron.remote;
+import electron, {remote} from 'electron';
 
 remote.autoUpdater.on('update-downloaded', onUpdateDownloaded);
 
-function onUpdateDownloaded(ev, releaseNotes, ver, date, updateURL) {
+function onUpdateDownloaded(ev: Event, releaseNotes: string, ver: string, date: Date, updateURL: string) {
     dis.dispatch({
         action: 'new_version',
         currentVersion: remote.app.getVersion(),
@@ -35,7 +33,7 @@ function onUpdateDownloaded(ev, releaseNotes, ver, date, updateURL) {
     });
 }
 
-function platformFriendlyName() {
+function platformFriendlyName(): string {
     console.log(window.process);
     switch (window.process.platform) {
         case 'darwin':
@@ -72,11 +70,11 @@ export default class ElectronPlatform extends VectorBasePlatform {
         }
     }
 
-    supportsNotifications() : boolean {
+    supportsNotifications(): boolean {
         return true;
     }
 
-    maySendNotifications() : boolean {
+    maySendNotifications(): boolean {
         return true;
     }
 
@@ -100,7 +98,7 @@ export default class ElectronPlatform extends VectorBasePlatform {
                 icon: avatarUrl,
                 tag: 'vector',
                 silent: true, // we play our own sounds
-            }
+            },
         );
 
         notification.onclick = function() {
@@ -123,7 +121,7 @@ export default class ElectronPlatform extends VectorBasePlatform {
         notif.close();
     }
 
-    getAppVersion() {
+    getAppVersion(): Promise<string> {
         return q(remote.app.getVersion());
     }
 
@@ -140,15 +138,15 @@ export default class ElectronPlatform extends VectorBasePlatform {
         electron.ipcRenderer.send('install_update');
     }
 
-    getDefaultDeviceDisplayName() {
+    getDefaultDeviceDisplayName(): string {
         return 'Riot Desktop on ' + platformFriendlyName();
     }
 
-    screenCaptureErrorString() {
+    screenCaptureErrorString(): ?string {
         return null;
     }
 
-    requestNotificationPermission() : Promise {
+    requestNotificationPermission(): Promise<string> {
         return q('granted');
     }
 
diff --git a/src/vector/platform/VectorBasePlatform.js b/src/vector/platform/VectorBasePlatform.js
index 5240f3f5..1466b76a 100644
--- a/src/vector/platform/VectorBasePlatform.js
+++ b/src/vector/platform/VectorBasePlatform.js
@@ -44,7 +44,7 @@ export default class VectorBasePlatform extends BasePlatform {
      * Get a sensible default display name for the
      * device Vector is running on
      */
-    getDefaultDeviceDisplayName() {
+    getDefaultDeviceDisplayName(): string {
         return "Unknown device";
     }
 }
diff --git a/src/vector/platform/WebPlatform.js b/src/vector/platform/WebPlatform.js
index 5dc55052..72ca19f0 100644
--- a/src/vector/platform/WebPlatform.js
+++ b/src/vector/platform/WebPlatform.js
@@ -52,7 +52,7 @@ export default class WebPlatform extends VectorBasePlatform {
             }
 
             this.favicon.badge(notif, {
-                bgColor: bgColor
+                bgColor: bgColor,
             });
         } catch (e) {
             console.warn(`Failed to set badge count: ${e.message}`);
@@ -75,7 +75,7 @@ export default class WebPlatform extends VectorBasePlatform {
      * Returns true if the platform supports displaying
      * notifications, otherwise false.
      */
-    supportsNotifications() : boolean {
+    supportsNotifications(): boolean {
         return Boolean(global.Notification);
     }
 
@@ -83,8 +83,8 @@ export default class WebPlatform extends VectorBasePlatform {
      * Returns true if the application currently has permission
      * to display notifications. Otherwise false.
      */
-    maySendNotifications() : boolean {
-        return global.Notification.permission == 'granted';
+    maySendNotifications(): boolean {
+        return global.Notification.permission === 'granted';
     }
 
     /**
@@ -94,7 +94,7 @@ export default class WebPlatform extends VectorBasePlatform {
      * that is 'granted' if the user allowed the request or
      * 'denied' otherwise.
      */
-    requestNotificationPermission() : Promise {
+    requestNotificationPermission(): Promise<string> {
         // annoyingly, the latest spec says this returns a
         // promise, but this is only supported in Chrome 46
         // and Firefox 47, so adapt the callback API.
@@ -113,13 +113,13 @@ export default class WebPlatform extends VectorBasePlatform {
                 icon: avatarUrl,
                 tag: "vector",
                 silent: true, // we play our own sounds
-            }
+            },
         );
 
         notification.onclick = function() {
             dis.dispatch({
                 action: 'view_room',
-                room_id: room.roomId
+                room_id: room.roomId,
             });
             global.focus();
             notification.close();
@@ -132,7 +132,7 @@ export default class WebPlatform extends VectorBasePlatform {
         }, 5 * 1000);
     }
 
-    _getVersion() {
+    _getVersion(): Promise<string> {
         const deferred = q.defer();
 
         // We add a cachebuster to the request to make sure that we know about
@@ -148,19 +148,19 @@ export default class WebPlatform extends VectorBasePlatform {
             },
             (err, response, body) => {
                 if (err || response.status < 200 || response.status >= 300) {
-                    if (err == null) err = { status: response.status };
+                    if (err === null) err = { status: response.status };
                     deferred.reject(err);
                     return;
                 }
 
                 const ver = body.trim();
                 deferred.resolve(ver);
-            }
+            },
         );
         return deferred.promise;
     }
 
-    getAppVersion() {
+    getAppVersion(): Promise<string> {
         if (this.runningVersion !== null) {
             return q(this.runningVersion);
         }
@@ -169,9 +169,9 @@ export default class WebPlatform extends VectorBasePlatform {
 
     pollForUpdate() {
         this._getVersion().done((ver) => {
-            if (this.runningVersion == null) {
+            if (this.runningVersion === null) {
                 this.runningVersion = ver;
-            } else if (this.runningVersion != ver) {
+            } else if (this.runningVersion !== ver) {
                 dis.dispatch({
                     action: 'new_version',
                     currentVersion: this.runningVersion,
@@ -187,19 +187,18 @@ export default class WebPlatform extends VectorBasePlatform {
         window.location.reload();
     }
 
-    getDefaultDeviceDisplayName() {
+    getDefaultDeviceDisplayName(): string {
         // strip query-string and fragment from uri
-        let u = url.parse(window.location.href);
+        const u = url.parse(window.location.href);
         u.search = "";
         u.hash = "";
-        let app_name = u.format();
+        const appName = u.format();
 
-        let ua = new UAParser();
-        return app_name + " via " + ua.getBrowser().name +
-            " on " + ua.getOS().name;
+        const ua = new UAParser();
+        return `${appName} via ${ua.getBrowser().name} on ${ua.getOS().name}`;
     }
 
-    screenCaptureErrorString() {
+    screenCaptureErrorString(): ?string {
         // it won't work at all if you're not on HTTPS so whine whine whine
         if (!global.window || global.window.location.protocol !== "https:") {
             return "You need to be using HTTPS to place a screen-sharing call.";