diff --git a/boids.mjs b/boids.mjs
index e9a2ebc..41e0b41 100644
--- a/boids.mjs
+++ b/boids.mjs
@@ -46,7 +46,7 @@ class Boid
 
 class Boids
 {
-    constructor(canvas, obstacles, params = {})
+    constructor(canvas, params = {})
     {
         this.canvas = canvas;
         this.ctx = canvas.getContext('2d');
@@ -81,7 +81,7 @@ class Boids
         this.boids = [];
 
         // List of obstacles
-        this.obstacles = obstacles;
+        this.obstacles = [];
 
         // Vector registers used for holding temporary values
         this.registers = [