--- a/net/minecraft/world/entity/ai/goal/PathfinderGoalTame.java
+++ b/net/minecraft/world/entity/ai/goal/PathfinderGoalTame.java
@@ -62,7 +62,8 @@
                 int i = this.horse.getTemper();
                 int j = this.horse.getMaxDomestication();
 
-                if (j > 0 && this.horse.getRandom().nextInt(j) < i) {
+                // CraftBukkit - fire EntityTameEvent
+                if (j > 0 && this.horse.getRandom().nextInt(j) < i && !org.bukkit.craftbukkit.event.CraftEventFactory.callEntityTameEvent(this.horse, ((org.bukkit.craftbukkit.entity.CraftHumanEntity) this.horse.getBukkitEntity().getPassenger()).getHandle()).isCancelled()) {
                     this.horse.i((EntityHuman) entity);
                     return;
                 }
