diff --git a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil115.java b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil115.java
index 3a1be86a..e13cb685 100644
--- a/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil115.java
+++ b/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/ChunkAnvil115.java
@@ -150,6 +150,11 @@ public String getBiome(int x, int y, int z) {
         return LegacyBiomes.idFor(biomes[biomeIntIndex]);
     }
 
+    @Override
+    public int getMaxY(int x, int z) {
+        return sections.length * 16 + 15;
+    }
+
     @Override
     public int getWorldSurfaceY(int x, int z) {
         if (this.worldSurfaceHeights.length < 36) return 0;