diff --git a/Bukkit/src/main/java/com/plotsquared/bukkit/generator/BukkitPlotGenerator.java b/Bukkit/src/main/java/com/plotsquared/bukkit/generator/BukkitPlotGenerator.java
index 767bcd375..da97ac621 100644
--- a/Bukkit/src/main/java/com/plotsquared/bukkit/generator/BukkitPlotGenerator.java
+++ b/Bukkit/src/main/java/com/plotsquared/bukkit/generator/BukkitPlotGenerator.java
@@ -37,6 +37,7 @@ import com.sk89q.worldedit.math.BlockVector2;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.bukkit.HeightMap;
+import org.bukkit.Registry;
 import org.bukkit.World;
 import org.bukkit.block.Biome;
 import org.bukkit.generator.BiomeProvider;
@@ -48,9 +49,11 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.Random;
 import java.util.Set;
+import java.util.stream.Collectors;
 
 public class BukkitPlotGenerator extends ChunkGenerator implements GeneratorWrapper<ChunkGenerator> {
 
@@ -434,9 +437,9 @@ public class BukkitPlotGenerator extends ChunkGenerator implements GeneratorWrap
         private static final List<Biome> BIOMES;
 
         static {
-            ArrayList<Biome> biomes = new ArrayList<>(List.of(Biome.values()));
-            biomes.remove(Biome.CUSTOM);
-            BIOMES = List.copyOf(biomes);
+            BIOMES = Arrays.stream(Biome.values())
+                    .filter(b -> Registry.BIOME.get(b.getKey()) != null)
+                    .collect(Collectors.toList());
         }
 
         @Override