diff --git a/server/src/main/java/org/opensearch/common/util/BytesReferenceUtil.java b/server/src/main/java/org/opensearch/common/util/BytesReferenceUtil.java
index a5ecc6ebf5533..7b793dc2e109d 100644
--- a/server/src/main/java/org/opensearch/common/util/BytesReferenceUtil.java
+++ b/server/src/main/java/org/opensearch/common/util/BytesReferenceUtil.java
@@ -16,6 +16,11 @@
 import java.io.ByteArrayOutputStream;
 import java.io.OutputStream;
 
+/**
+ * Server specific utilities for BytesReference objects
+ *
+ * @opensearch.internal
+ */
 public class BytesReferenceUtil {
     /**
      * Convert an {@link XContentBuilder} into a BytesReference. This method closes the builder,