diff --git a/src/org/redkale/convert/ConvertType.java b/src/org/redkale/convert/ConvertType.java
index 0f85dc8d8..3b788a0f8 100644
--- a/src/org/redkale/convert/ConvertType.java
+++ b/src/org/redkale/convert/ConvertType.java
@@ -17,6 +17,7 @@ public enum ConvertType {
 
     JSON(1),
     BSON(2),
+    DIY(4),
     ALL(127);
 
     private final int value;