diff --git a/src/main/java/com/io/yutian/aulib/serialize/SerializeHelper.java b/src/main/java/com/io/yutian/aulib/serialize/SerializeHelper.java
index 962ea72..6a5416c 100644
--- a/src/main/java/com/io/yutian/aulib/serialize/SerializeHelper.java
+++ b/src/main/java/com/io/yutian/aulib/serialize/SerializeHelper.java
@@ -84,6 +84,7 @@ public class SerializeHelper {
         }
         if (serializers.containsKey(clazz)) {
             Serializer serializer = serializers.get(clazz);
+            System.out.println(serializer+":"+serializer.deserialize(value));
             return serializer.deserialize(value);
         }
         if (ISerializable.class.isAssignableFrom(clazz)) {
@@ -165,9 +166,6 @@ public class SerializeHelper {
             }
             return jsonObject;
         } else {
-            if (clazz.toString().startsWith("net.minecraft")) {
-                return null;
-            }
             return serialize(value);
         }
     }
diff --git a/src/main/java/com/io/yutian/aulib/serialize/serializers/ItemStackSerializer.java b/src/main/java/com/io/yutian/aulib/serialize/serializers/ItemStackSerializer.java
index e427ffe..a29a288 100644
--- a/src/main/java/com/io/yutian/aulib/serialize/serializers/ItemStackSerializer.java
+++ b/src/main/java/com/io/yutian/aulib/serialize/serializers/ItemStackSerializer.java
@@ -13,10 +13,10 @@ public class ItemStackSerializer implements Serializer<ItemStack> {
     public Object serialize(ItemStack value) {
         JSONObject jsonObject = new JSONObject();
         net.minecraft.world.item.ItemStack nmsItemStack = CraftItemStack.asNMSCopy(value);
-        jsonObject.put("Type", nmsItemStack.c().k().g().a());
+        jsonObject.put("id", nmsItemStack.c().k().g().a());
         jsonObject.put("Count", nmsItemStack.J());
         NBTTagCompound nbtTagCompound = nmsItemStack.u();
-        jsonObject.put("Tag", nbtTagCompound.toString());
+        jsonObject.put("tag", nbtTagCompound.toString());
         return jsonObject;
     }
 
diff --git a/src/main/resources/plugin.yml b/src/main/resources/plugin.yml
index 9825133..5355491 100644
--- a/src/main/resources/plugin.yml
+++ b/src/main/resources/plugin.yml
@@ -1,5 +1,5 @@
 name: AuLib
 main: com.io.yutian.aulib.AuLib
-version: 1.6.1
+version: 1.6.2
 api-version: 1.18
 author: SuperYuTian
\ No newline at end of file