diff --git a/back/src/Controller/MapController.ts b/back/src/Controller/MapController.ts
index af2ba848..58ce40a9 100644
--- a/back/src/Controller/MapController.ts
+++ b/back/src/Controller/MapController.ts
@@ -19,7 +19,7 @@ export class MapController {
     // Returns a map mapping map name to file name of the map
     getStartMap() {
         this.App.get("/start-map", (req: Request, res: Response) => {
-            let url = req.headers.host?.replace('api.', 'maps.') + URL_ROOM_STARTED;
+            const url = req.headers.host?.replace('api.', 'maps.') + URL_ROOM_STARTED;
             res.status(OK).send({
                 mapUrlStart: url,
                 startInstance: "global"
diff --git a/front/src/Phaser/Game/GameScene.ts b/front/src/Phaser/Game/GameScene.ts
index 6d311e33..9ee54058 100644
--- a/front/src/Phaser/Game/GameScene.ts
+++ b/front/src/Phaser/Game/GameScene.ts
@@ -252,11 +252,11 @@ export class GameScene extends Phaser.Scene {
         })
 
         // Scan the object layers for objects to load and load them.
-        let objects = new Map<string, ITiledMapObject[]>();
+        const objects = new Map<string, ITiledMapObject[]>();
 
-        for (let layer of this.mapFile.layers) {
+        for (const layer of this.mapFile.layers) {
             if (layer.type === 'objectgroup') {
-                for (let object of layer.objects) {
+                for (const object of layer.objects) {
                     let objectsOfType: ITiledMapObject[]|undefined;
                     if (!objects.has(object.type)) {
                         objectsOfType = new Array<ITiledMapObject>();
@@ -272,16 +272,17 @@ export class GameScene extends Phaser.Scene {
             }
         }
 
-        for (let [itemType, objectsOfType] of objects) {
+        for (const [itemType, objectsOfType] of objects) {
             // FIXME: we would ideally need for the loader to WAIT for the import to be performed, which means writing our own loader plugin.
 
             let itemFactory: ItemFactoryInterface;
 
             switch (itemType) {
-                case 'computer':
-                    let module = await import('../Items/Computer/computer');
-                    itemFactory = module.default as ItemFactoryInterface;
+                case 'computer': {
+                    const module = await import('../Items/Computer/computer');
+                    itemFactory = module.default;
                     break;
+                }
                 default:
                     throw new Error('Unsupported object type: "'+ itemType +'"');
             }
@@ -295,9 +296,9 @@ export class GameScene extends Phaser.Scene {
                 this.createPromise.then(() => {
                     itemFactory.create(this);
 
-                    for (let object of objectsOfType) {
+                    for (const object of objectsOfType) {
                         // TODO: we should pass here a factory to create sprites (maybe?)
-                        let actionableItem = itemFactory.factory(this, object);
+                        const actionableItem = itemFactory.factory(this, object);
                         this.actionableItems.push(actionableItem);
                     }
                 });
@@ -675,8 +676,8 @@ export class GameScene extends Phaser.Scene {
 
         let shortestDistance: number = Infinity;
         let selectedItem: ActionableItem|null = null;
-        for (let item of this.actionableItems) {
-            let distance = item.actionableDistance(x, y);
+        for (const item of this.actionableItems) {
+            const distance = item.actionableDistance(x, y);
             if (distance !== null && distance < shortestDistance) {
                 shortestDistance = distance;
                 selectedItem = item;
diff --git a/front/src/Phaser/Items/ActionableItem.ts b/front/src/Phaser/Items/ActionableItem.ts
index 229b0888..01e85c64 100644
--- a/front/src/Phaser/Items/ActionableItem.ts
+++ b/front/src/Phaser/Items/ActionableItem.ts
@@ -18,7 +18,7 @@ export class ActionableItem {
      * OR null if we are out of range.
      */
     public actionableDistance(x: number, y: number): number|null {
-        let distanceSquared = (x - this.sprite.x)*(x - this.sprite.x) + (y - this.sprite.y)*(y - this.sprite.y);
+        const distanceSquared = (x - this.sprite.x)*(x - this.sprite.x) + (y - this.sprite.y)*(y - this.sprite.y);
         if (distanceSquared < this.activationRadiusSquared) {
             return distanceSquared;
         } else {
diff --git a/front/src/Phaser/Items/Computer/computer.ts b/front/src/Phaser/Items/Computer/computer.ts
index 7ea7b318..b979ebf6 100644
--- a/front/src/Phaser/Items/Computer/computer.ts
+++ b/front/src/Phaser/Items/Computer/computer.ts
@@ -15,7 +15,7 @@ export default {
     },
     factory: (scene: GameScene, object: ITiledMapObject): ActionableItem => {
         // Idée: ESSAYER WebPack? https://paultavares.wordpress.com/2018/07/02/webpack-how-to-generate-an-es-module-bundle/
-        let foo = new Sprite(scene, object.x, object.y, 'computer');
+        const foo = new Sprite(scene, object.x, object.y, 'computer');
         scene.add.existing(foo);
 
         return new ActionableItem(foo, 32);
diff --git a/front/src/index.ts b/front/src/index.ts
index b847fa74..bf744a36 100644
--- a/front/src/index.ts
+++ b/front/src/index.ts
@@ -27,7 +27,7 @@ const config: GameConfig = {
     callbacks: {
         postBoot: game => {
             // FIXME: we should fore WebGL in the config.
-            let renderer = game.renderer as WebGLRenderer;
+            const renderer = game.renderer as WebGLRenderer;
             renderer.addPipeline(OutlinePipeline.KEY, new OutlinePipeline(game));
         }
     }