--- a/net/minecraft/server/MobSpawnerTrader.java
+++ b/net/minecraft/server/MobSpawnerTrader.java
@@ -78,7 +78,7 @@
                     return false;
                 }
 
-                EntityVillagerTrader entityvillagertrader = (EntityVillagerTrader) EntityTypes.WANDERING_TRADER.spawnCreature(this.b, (NBTTagCompound) null, (IChatBaseComponent) null, (EntityHuman) null, blockposition2, EnumMobSpawn.EVENT, false, false);
+                EntityVillagerTrader entityvillagertrader = (EntityVillagerTrader) EntityTypes.WANDERING_TRADER.spawnCreature(this.b, (NBTTagCompound) null, (IChatBaseComponent) null, (EntityHuman) null, blockposition2, EnumMobSpawn.EVENT, false, false, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL); // CraftBukkit
 
                 if (entityvillagertrader != null) {
                     for (int i = 0; i < 2; ++i) {
@@ -101,7 +101,7 @@
         BlockPosition blockposition = this.a(new BlockPosition(entityvillagertrader), i);
 
         if (blockposition != null) {
-            EntityLlamaTrader entityllamatrader = (EntityLlamaTrader) EntityTypes.TRADER_LLAMA.spawnCreature(this.b, (NBTTagCompound) null, (IChatBaseComponent) null, (EntityHuman) null, blockposition, EnumMobSpawn.EVENT, false, false);
+            EntityLlamaTrader entityllamatrader = (EntityLlamaTrader) EntityTypes.TRADER_LLAMA.spawnCreature(this.b, (NBTTagCompound) null, (IChatBaseComponent) null, (EntityHuman) null, blockposition, EnumMobSpawn.EVENT, false, false, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL); // CraftBukkit
 
             if (entityllamatrader != null) {
                 entityllamatrader.setLeashHolder(entityvillagertrader, true);
