diff --git a/src/java/mmm/materials/MTree.java b/src/java/mmm/materials/MTree.java
index f00e1a0..52332d5 100644
--- a/src/java/mmm/materials/MTree.java
+++ b/src/java/mmm/materials/MTree.java
@@ -5,7 +5,7 @@ import java.util.Random;
 
 import mmm.utils.I_URecipeRegistrar;
 import mmm.utils.URegistry;
-import mmm.world.trees.A_MTreeGenerator;
+import mmm.world.trees.A_WTTreeGenerator;
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockLog;
 import net.minecraft.block.material.MapColor;
@@ -168,7 +168,7 @@ public class MTree
 	}
 
 
-	public MTree setTreeGenerator( final A_MTreeGenerator generator )
+	public MTree setTreeGenerator( final A_WTTreeGenerator generator )
 	{
 		this.genNormal = generator;
 		if ( generator != null ) {
@@ -178,13 +178,13 @@ public class MTree
 	}
 
 
-	public MTree setBigTreeGenerator( final A_MTreeGenerator generator )
+	public MTree setBigTreeGenerator( final A_WTTreeGenerator generator )
 	{
 		return this.setBigTreeGenerator( generator , .1f );
 	}
 
 
-	public MTree setBigTreeGenerator( final A_MTreeGenerator generator , final float chance )
+	public MTree setBigTreeGenerator( final A_WTTreeGenerator generator , final float chance )
 	{
 		this.genBig = generator;
 		this.genBigChance = chance;
@@ -195,7 +195,7 @@ public class MTree
 	}
 
 
-	public MTree setMegaTreeGenerator( final A_MTreeGenerator generator )
+	public MTree setMegaTreeGenerator( final A_WTTreeGenerator generator )
 	{
 		this.genMega = generator;
 		if ( generator != null ) {
diff --git a/src/java/mmm/materials/MTrees.java b/src/java/mmm/materials/MTrees.java
index e49f11e..67cc12c 100644
--- a/src/java/mmm/materials/MTrees.java
+++ b/src/java/mmm/materials/MTrees.java
@@ -2,7 +2,7 @@ package mmm.materials;
 
 
 import mmm.utils.UMaths;
-import mmm.world.trees.MHeveaGenerator;
+import mmm.world.trees.WTHeveaGenerator;
 import mmm.world.trees.WTBambooGenerator;
 import net.minecraft.block.material.MapColor;
 
@@ -20,7 +20,7 @@ public class MTrees
 		HEVEA = new MTree( "hevea" ) //
 				.setBarkColor( MapColor.GRAY ) //
 				.setBaseFireInfo( 5 , 8 ) //
-				.setTreeGenerator( new MHeveaGenerator( true ) ) //
+				.setTreeGenerator( new WTHeveaGenerator( true ) ) //
 				.register( );
 
 		BAMBOO = new MTree( "bamboo" ) //
diff --git a/src/java/mmm/world/trees/A_MTreeGenerator.java b/src/java/mmm/world/trees/A_WTTreeGenerator.java
similarity index 98%
rename from src/java/mmm/world/trees/A_MTreeGenerator.java
rename to src/java/mmm/world/trees/A_WTTreeGenerator.java
index c5f4fc5..3d23458 100644
--- a/src/java/mmm/world/trees/A_MTreeGenerator.java
+++ b/src/java/mmm/world/trees/A_WTTreeGenerator.java
@@ -13,7 +13,7 @@ import net.minecraft.world.gen.feature.WorldGenAbstractTree;
 
 
 
-public abstract class A_MTreeGenerator
+public abstract class A_WTTreeGenerator
 		extends WorldGenAbstractTree
 {
 	public static class RuntimeData
@@ -135,7 +135,7 @@ public abstract class A_MTreeGenerator
 	private MTree wood;
 
 
-	public A_MTreeGenerator( final boolean notify )
+	public A_WTTreeGenerator( final boolean notify )
 	{
 		super( notify );
 	}
diff --git a/src/java/mmm/world/trees/WTBambooGenerator.java b/src/java/mmm/world/trees/WTBambooGenerator.java
index 981c4ae..05692e0 100644
--- a/src/java/mmm/world/trees/WTBambooGenerator.java
+++ b/src/java/mmm/world/trees/WTBambooGenerator.java
@@ -10,7 +10,7 @@ import net.minecraft.util.math.BlockPos;
 
 
 public class WTBambooGenerator
-		extends A_MTreeGenerator
+		extends A_WTTreeGenerator
 {
 
 	private final int minHeight;
diff --git a/src/java/mmm/world/trees/MHeveaGenerator.java b/src/java/mmm/world/trees/WTHeveaGenerator.java
similarity index 95%
rename from src/java/mmm/world/trees/MHeveaGenerator.java
rename to src/java/mmm/world/trees/WTHeveaGenerator.java
index 0d90fbe..048da7a 100644
--- a/src/java/mmm/world/trees/MHeveaGenerator.java
+++ b/src/java/mmm/world/trees/WTHeveaGenerator.java
@@ -9,11 +9,11 @@ import net.minecraft.util.math.BlockPos;
 
 
 
-public class MHeveaGenerator
-		extends A_MTreeGenerator
+public class WTHeveaGenerator
+		extends A_WTTreeGenerator
 {
 
-	public MHeveaGenerator( final boolean notify )
+	public WTHeveaGenerator( final boolean notify )
 	{
 		super( notify );
 	}