Updated to Minecraft 1.1

src/main/java/net/minecraft/server/TileEntityMobSpawner.java

@@ -82,7 +82,7 @@ public class TileEntityMobSpawner extends TileEntity {
                             // CraftBukkit end
 
                             this.world.f(2004, this.x, this.y, this.z, 0);
-                            entityliving.ah();
+                            entityliving.ao();
                             this.e();
                         }
                     }