diff --git a/java/src/main/java/org/msgpack/template/ClassTemplate.java b/java/src/main/java/org/msgpack/template/ClassTemplate.java
index 7d1720d2..bf8a5be9 100644
--- a/java/src/main/java/org/msgpack/template/ClassTemplate.java
+++ b/java/src/main/java/org/msgpack/template/ClassTemplate.java
@@ -27,6 +27,7 @@ import org.msgpack.util.codegen.DynamicOrdinalEnumTemplate;
 
 import java.util.*;
 import java.math.BigInteger;
+import java.nio.ByteBuffer;
 
 public class ClassTemplate implements Template {
 	static {
@@ -122,6 +123,10 @@ public class ClassTemplate implements Template {
 			pk.packBigInteger((BigInteger)o);
 			return;
 		}
+		if (o instanceof ByteBuffer) { // FIXME
+			Templates.tByteBuffer().pack(pk, o);
+			return;
+		}
 
 		MessagePacker packer = CustomPacker.get(klass);
 		if(packer != null) {