diff --git a/src/main/java/org/jsweet/examples/raytracer/RayTracer.java b/src/main/java/org/jsweet/examples/raytracer/RayTracer.java
index 6556ea0..e607eaa 100644
--- a/src/main/java/org/jsweet/examples/raytracer/RayTracer.java
+++ b/src/main/java/org/jsweet/examples/raytracer/RayTracer.java
@@ -359,7 +359,7 @@ void render(Scene scene, CanvasRenderingContext2D ctx, int screenWidth, int scre
 				Color color = this.traceRay(new Ray(scene.camera.pos, getPoint.apply(x, y, scene.camera)), scene, 0);
 				Color c = Color.toDrawingColor(color);
 				ctx.fillStyle = union("rgb(" + new String(c.r) + ", " + new String(c.g) + ", " + new String(c.b) + ")");
-				ctx.fillRect(x, y, x + 1, y + 1);
+				ctx.fillRect(x, y, 1, 1);
 			}
 		}
 	}
@@ -394,4 +394,4 @@ static void main() {
 		rayTracer.render(defaultScene(), ctx, size, size);
 	}
 
-}
\ No newline at end of file
+}