diff --git a/experiment/movepixels.c b/experiment/movepixels.c
index 57471728..342fe697 100644
--- a/experiment/movepixels.c
+++ b/experiment/movepixels.c
@@ -65,7 +65,7 @@ for (yd=0; yd<pdst->height; yd++) {
 		fimg_get_rgb(pshift, xd, yd, disp);
 
 		xs = xd + ((disp[0]/dltr*MULT) - OFFS);
-		ys = yd + ((disp[2]/dltb*MULT) - OFFS);
+		ys = yd + ((disp[1]/dltb*MULT) - OFFS);
 
 		if ( xs<0 || xs>psrc->width 	||
 		     ys<0 || ys>psrc->height ) {