diff --git a/src/main/java/com/alipay/remoting/codec/ProtocolCodeBasedDecoder.java b/src/main/java/com/alipay/remoting/codec/ProtocolCodeBasedDecoder.java
index 817d0bc5..2bab3d17 100644
--- a/src/main/java/com/alipay/remoting/codec/ProtocolCodeBasedDecoder.java
+++ b/src/main/java/com/alipay/remoting/codec/ProtocolCodeBasedDecoder.java
@@ -106,7 +106,7 @@ protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) t
 
             if (protocol == null) {
                 throw new CodecException("Unknown protocol code: [" + protocolCode
-                        + "] while decode in ProtocolDecoder.");
+                                         + "] while decode in ProtocolDecoder.");
             }
 
             protocol.getDecoder().decode(ctx, in, out);