diff --git a/wavefront.cl b/wavefront.cl
index da28819..d881085 100644
--- a/wavefront.cl
+++ b/wavefront.cl
@@ -187,7 +187,7 @@ void kernel Shade( global float4* accumulator,
 			float2 noise0 = Noise( pixelIdx % height, pixelIdx / height, sampleIdx * 2 );
 			float2 noise1 = Noise( pixelIdx % height, pixelIdx / height, sampleIdx * 2 + 1 );
 			r0 = noise0.x, r1 = noise0.y;
-			r2 = noise0.x, r3 = noise0.y;
+			r2 = noise1.x, r3 = noise1.y;
 		}
 		else
 		{
diff --git a/wavefront2.cl b/wavefront2.cl
index 1cc1349..f1ab312 100644
--- a/wavefront2.cl
+++ b/wavefront2.cl
@@ -213,7 +213,7 @@ void kernel Shade( global float4* accumulator,
 			float2 noise0 = Noise( pixelIdx % height, pixelIdx / height, sampleIdx * 2 );
 			float2 noise1 = Noise( pixelIdx % height, pixelIdx / height, sampleIdx * 2 + 1 );
 			r0 = noise0.x, r1 = noise0.y;
-			r2 = noise0.x, r3 = noise0.y;
+			r2 = noise1.x, r3 = noise1.y;
 		}
 		else
 		{