diff --git a/src/main/java/cpw/mods/fml/common/registry/GameRegistry.java b/src/main/java/cpw/mods/fml/common/registry/GameRegistry.java
index 8bb914d..40acdcd 100644
--- a/src/main/java/cpw/mods/fml/common/registry/GameRegistry.java
+++ b/src/main/java/cpw/mods/fml/common/registry/GameRegistry.java
@@ -37,6 +37,7 @@
 import net.minecraft.world.chunk.IChunkProvider;
 
 import org.apache.logging.log4j.Level;
+import org.ultramine.server.chunk.WrappedModGenerator;
 
 import com.google.common.base.Objects;
 import com.google.common.collect.ImmutableList;
@@ -70,6 +71,7 @@
 	 */
 	public static void registerWorldGenerator(IWorldGenerator generator, int modGenerationWeight)
 	{
+		generator = new WrappedModGenerator(generator, Loader.instance().activeModContainer());
 		worldGenerators.add(generator);
 		worldGeneratorIndex.put(generator, modGenerationWeight);
 		if (sortedGeneratorList != null)
diff --git a/src/main/java/org/ultramine/server/WorldsConfig.java b/src/main/java/org/ultramine/server/WorldsConfig.java
index 3e7d979..ca168cd 100644
--- a/src/main/java/org/ultramine/server/WorldsConfig.java
+++ b/src/main/java/org/ultramine/server/WorldsConfig.java
@@ -1,6 +1,7 @@
 package org.ultramine.server;
 
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 
 public class WorldsConfig
@@ -27,6 +28,7 @@
 			public String generatorSettings = "";
 			public boolean generateStructures = true;
 			public boolean disableModGeneration = false;
+			public List<String> modGenerationBlackList;
 		}
 		
 		public static class MobSpawn
diff --git a/src/main/java/org/ultramine/server/chunk/WrappedModGenerator.java b/src/main/java/org/ultramine/server/chunk/WrappedModGenerator.java
new file mode 100644
index 0000000..a53f45d
--- /dev/null
+++ b/src/main/java/org/ultramine/server/chunk/WrappedModGenerator.java
@@ -0,0 +1,40 @@
+package org.ultramine.server.chunk;
+
+import java.util.List;
+import java.util.Random;
+
+import net.minecraft.world.World;
+import net.minecraft.world.WorldServer;
+import net.minecraft.world.chunk.IChunkProvider;
+import cpw.mods.fml.common.IWorldGenerator;
+import cpw.mods.fml.common.ModContainer;
+
+public class WrappedModGenerator implements IWorldGenerator
+{
+	private final IWorldGenerator wrapped;
+	private final ModContainer owner;
+	
+	public WrappedModGenerator(IWorldGenerator wrapped, ModContainer owner)
+	{
+		this.wrapped = wrapped;
+		this.owner = owner;
+	}
+
+	@Override
+	public void generate(Random random, int chunkX, int chunkZ, World world, IChunkProvider chunkGenerator, IChunkProvider chunkProvider)
+	{
+		List<String> modGenerationBlackList = ((WorldServer)world).getConfig().generation.modGenerationBlackList;
+		if(modGenerationBlackList == null || owner == null || !modGenerationBlackList.contains(owner.getModId()))
+			wrapped.generate(random, chunkX, chunkZ, world, chunkGenerator, chunkProvider);
+	}
+
+	public int hashCode()
+	{
+		return wrapped.hashCode();
+	}
+	
+	public boolean equals(Object o)
+	{
+		return o instanceof WrappedModGenerator && ((WrappedModGenerator)o).wrapped.equals(wrapped) || wrapped.equals(o);
+	}
+}
diff --git a/src/main/resources/org/ultramine/defaults/defaultworlds.yml b/src/main/resources/org/ultramine/defaults/defaultworlds.yml
index 77d8640..2b63e24 100644
--- a/src/main/resources/org/ultramine/defaults/defaultworlds.yml
+++ b/src/main/resources/org/ultramine/defaults/defaultworlds.yml
@@ -7,6 +7,7 @@
         generateStructures: true
         generatorSettings: ''
         disableModGeneration: false
+        modGenerationBlackList: []
     mobSpawn:
         allowAnimals: true
         spawnAnimals: true