diff --git a/handler/src/main/java/io/netty/handler/logging/LoggingHandler.java b/handler/src/main/java/io/netty/handler/logging/LoggingHandler.java
index 0a0365b65d..2e645e610e 100644
--- a/handler/src/main/java/io/netty/handler/logging/LoggingHandler.java
+++ b/handler/src/main/java/io/netty/handler/logging/LoggingHandler.java
@@ -397,7 +397,11 @@ public class LoggingHandler extends ChannelHandlerAdapter {
         }
     }
 
-    private static void appendHexDump(StringBuilder dump, ByteBuf buf) {
+    /**
+     * Appends the prettifies multi-line hexadecimal dump of the specified {@link ByteBuf} to the specified
+     * {@link StringBuilder}.
+     */
+    protected static void appendHexDump(StringBuilder dump, ByteBuf buf) {
         dump.append(
                 NEWLINE + "         +-------------------------------------------------+" +
                 NEWLINE + "         |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |" +