diff --git a/src/ts/interfaces/sprite.ts b/src/ts/interfaces/sprite.ts
index 7f2fd8d..c9de7b9 100644
--- a/src/ts/interfaces/sprite.ts
+++ b/src/ts/interfaces/sprite.ts
@@ -1,4 +1,4 @@
-import { Point } from "./point";
+import { Point } from './point';
 
 export interface Sprite extends Point {
   active: boolean;
diff --git a/src/ts/utils/canvas-utils.ts b/src/ts/utils/canvas-utils.ts
index f56d9a4..4da68c2 100644
--- a/src/ts/utils/canvas-utils.ts
+++ b/src/ts/utils/canvas-utils.ts
@@ -45,7 +45,7 @@ export function drawSkybox(context: CanvasRenderingContext2D, start: Point, end:
   context.drawImage(texture.canvas as HTMLCanvasElement, texturePositionX, 0, 1, (wallHeight / context.canvas.height) * texture.height, start.x, start.y, 1, wallHeight);
 }
 
-export function drawBorderRectangle(context: CanvasRenderingContext2D, destination: Rectangle, colour: string = 'white') {
+export function drawBorderRectangle(context: CanvasRenderingContext2D, destination: Rectangle, colour: string = 'white'): void {
   context.save();
   context.strokeStyle = colour;
   context.lineWidth = 1;
diff --git a/src/ts/utils/cell-utils.ts b/src/ts/utils/cell-utils.ts
index 48d7fe6..ab1344e 100644
--- a/src/ts/utils/cell-utils.ts
+++ b/src/ts/utils/cell-utils.ts
@@ -40,7 +40,7 @@ export function isSolid(cell: Cell): number {
 export function isBlocked(cell: Cell): number {
   let retVal = cellHasProperty(cell, CellProperties.BLOCKED);
 
-    // FIXME: This should be moved elsewhere as in specific walls of a 'Door' Cell could still be solid
+  // FIXME: This should be moved elsewhere as in specific walls of a 'Door' Cell could still be solid
   if (isDoor(cell) && (cell as DoorCell).status === DoorState.OPEN) {
     retVal = 0;
   }