diff --git a/codec/src/main/java/io/netty/handler/codec/bytes/ByteArrayEncoder.java b/codec/src/main/java/io/netty/handler/codec/bytes/ByteArrayEncoder.java
index 14470abccf..9a0d8bf206 100644
--- a/codec/src/main/java/io/netty/handler/codec/bytes/ByteArrayEncoder.java
+++ b/codec/src/main/java/io/netty/handler/codec/bytes/ByteArrayEncoder.java
@@ -17,6 +17,7 @@ package io.netty.handler.codec.bytes;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
+import io.netty.channel.ChannelHandler.Sharable;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelOutboundMessageHandlerAdapter;
 import io.netty.channel.ChannelPipeline;
@@ -47,6 +48,7 @@ import io.netty.handler.codec.LengthFieldPrepender;
  * }
  * </pre>
  */
+@Sharable
 public class ByteArrayEncoder extends ChannelOutboundMessageHandlerAdapter<byte[]> {
 
     @Override