--- a/net/minecraft/world/entity/ai/goal/target/PathfinderGoalNearestAttackableTarget.java
+++ b/net/minecraft/world/entity/ai/goal/target/PathfinderGoalNearestAttackableTarget.java
@@ -61,7 +61,7 @@
 
     @Override
     public void c() {
-        this.mob.setGoalTarget(this.target);
+        this.mob.setGoalTarget(this.target, target instanceof EntityPlayer ? org.bukkit.event.entity.EntityTargetEvent.TargetReason.CLOSEST_PLAYER : org.bukkit.event.entity.EntityTargetEvent.TargetReason.CLOSEST_ENTITY, true); // CraftBukkit - reason
         super.c();
     }
 
