diff --git a/funcs/tests.c b/funcs/tests.c
index f134bdb..91d4967 100644
--- a/funcs/tests.c
+++ b/funcs/tests.c
@@ -880,7 +880,7 @@ memset(&dst, 0, sizeof(FloatImg));
 foo = fimg_clone(&src, &dst, 0);
 if (foo) return -888;
 
-foo = fimg_pixelize_h_0(&src, &dst, 0);
+foo = fimg_pixelize_h_0(&src, &dst, 8);
 if (foo) {
 	fprintf(stderr, "in %s, pixelize give us a %d\n", __func__, foo);
 	return foo;