diff --git a/anvil-loader/src/test/java/mc/world/anvil/RegionTest.java b/anvil-loader/src/test/java/mc/world/anvil/RegionTest.java
index b6753e7..f9f83f9 100644
--- a/anvil-loader/src/test/java/mc/world/anvil/RegionTest.java
+++ b/anvil-loader/src/test/java/mc/world/anvil/RegionTest.java
@@ -106,7 +106,7 @@ class RegionTest {
                     } else if (x == 0 && z == 15) {
                         assertEquals(BlockType.ANDESITE, block.getBlockType(), String.format("coords: %d %d %d", x, y, z));
                     } else if (x == 0 || x == 15 || z == 0 || z == 15) {
-                        assertEquals(BlockType.DIAMOND_ORE, block.getBlockType(), String.format("coords: %d %d %d", x, y, z));
+                        assertEquals(BlockType.ORE_DIAMOND, block.getBlockType(), String.format("coords: %d %d %d", x, y, z));
                     } else {
                         assertEquals(BlockType.AIR, block.getBlockType(), String.format("coords: %d %d %d", x, y, z));
                     }