diff --git a/src/main/java/net/minecraft/entity/player/EntityPlayer.java b/src/main/java/net/minecraft/entity/player/EntityPlayer.java
index 120acd9..b8bcd17 100644
--- a/src/main/java/net/minecraft/entity/player/EntityPlayer.java
+++ b/src/main/java/net/minecraft/entity/player/EntityPlayer.java
@@ -13,6 +13,9 @@
 import java.util.Iterator;
 import java.util.List;
 import java.util.UUID;
+
+import org.ultramine.server.util.MinecraftUtil;
+
 import java.util.Map.Entry;
 
 import net.minecraft.block.Block;
@@ -1872,6 +1875,19 @@
 
 	public void addExperienceLevel(int p_82242_1_)
 	{
+		if(p_82242_1_ < 0 && true)
+		{
+			int xp = MinecraftUtil.countXPCostForLevel(experienceLevel);
+			xp += (MinecraftUtil.countXPCostForLevel(experienceLevel + 1) - xp) * experience;
+			xp -= MinecraftUtil.countXPCostForLevel(-p_82242_1_);
+			experienceLevel = 0;
+			experience = 0.0F;
+			experienceTotal = 0;
+			if(xp > 0)
+				addExperience(xp);
+			return;
+		}
+		
 		this.experienceLevel += p_82242_1_;
 
 		if (this.experienceLevel < 0)
diff --git a/src/main/java/org/ultramine/server/util/MinecraftUtil.java b/src/main/java/org/ultramine/server/util/MinecraftUtil.java
index edb53e1..7e05bd7 100644
--- a/src/main/java/org/ultramine/server/util/MinecraftUtil.java
+++ b/src/main/java/org/ultramine/server/util/MinecraftUtil.java
@@ -27,4 +27,26 @@
         Vec3 var23 = var13.addVector((double)var18 * var21, (double)var17 * var21, (double)var20 * var21);
         return player.worldObj.rayTraceBlocks(var13, var23, true);
 	}
+	
+	public static int countXPCostForLevel(int level)
+	{
+		if(level < 17)
+		{
+			return 17*level;
+		}
+		else if(level < 30)
+		{
+			int cost = 17*level;
+			for(int i = 0; i < level - 15; i++)
+				cost += i*3;
+			return cost + level/18;
+		}
+		else
+		{
+			int cost = 826;
+			for(int i = 0; i < level - 30; i++)
+				cost += 62 + i*7;
+			return cost;
+		}
+	}
 }