diff --git a/nx01-x4o-fc18/src/test/java/org/x4o/fc18/FourCornerRecipeTest.java b/nx01-x4o-fc18/src/test/java/org/x4o/fc18/FourCornerRecipeTest.java
index b1db32c..cd68863 100644
--- a/nx01-x4o-fc18/src/test/java/org/x4o/fc18/FourCornerRecipeTest.java
+++ b/nx01-x4o-fc18/src/test/java/org/x4o/fc18/FourCornerRecipeTest.java
@@ -42,13 +42,13 @@ public class FourCornerRecipeTest {
 	public void testSandWalker() throws Exception {
 		List<Integer> cdc = new ArrayList<>();
 		Assertions.assertThrows(IllegalArgumentException.class, () -> {
-			FourCornerRecipe.embedSandWalker(cdc, List.of(PrimordialOctal.PART_1));
+			FourCornerRecipe.embedSandWalkerX06(cdc, List.of(PrimordialOctal.PART_1));
 		});
 		List<PrimordialOctal> octalMine = new ArrayList<>();
 		for (int i=0;i<24;i++) {
 			octalMine.add(PrimordialOctal.PART_1);
 		}
-		FourCornerRecipe.embedSandWalker(cdc, octalMine);
+		FourCornerRecipe.embedSandWalkerX06(cdc, octalMine);
 		String res = FourCornerUnicodeDisplay.text().renderFromInt18(cdc);
 		Assertions.assertTrue(res.endsWith("PART_1PART_1"), "missing " + res);
 	}