diff --git a/src/de/steamwar/spectatesystem/elements/REntity.java b/src/de/steamwar/spectatesystem/elements/REntity.java
index 58bf241..93edbcf 100644
--- a/src/de/steamwar/spectatesystem/elements/REntity.java
+++ b/src/de/steamwar/spectatesystem/elements/REntity.java
@@ -104,7 +104,9 @@ public abstract class REntity {
 
         DataWatcher dataWatcher = new DataWatcher(entity);
         System.out.println("Let " + entity.getName() + " sneak " + sneaking);
-        dataWatcher.register(new DataWatcherObject<>(0, DataWatcherRegistry.a), sneaking ? (byte)0x02 : (byte)0x40);
+        DataWatcherObject<Byte> dwo = new DataWatcherObject<>(0, DataWatcherRegistry.a);
+        dataWatcher.register(dwo, sneaking ? (byte)0x02 : (byte)0x40);
+        dataWatcher.markDirty(dwo);
         PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entity.getId(), dataWatcher, true);
 
         for(Player player : Bukkit.getOnlinePlayers()){