diff --git a/CHANGELOG.md b/CHANGELOG.md
index 54438d28ad35f..9eb3486701641 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -100,6 +100,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - [Remote cluster state] Make index and global metadata upload timeout dynamic cluster settings ([#10814](https://github.com/opensearch-project/OpenSearch/pull/10814))
 - Added cluster setting cluster.restrict.index.replication_type to restrict setting of index setting replication type ([#10866](https://github.com/opensearch-project/OpenSearch/pull/10866))
 - Add cluster state stats ([#10670](https://github.com/opensearch-project/OpenSearch/pull/10670))
+- Adding slf4j license header to LoggerMessageFormat.java ([#11069](https://github.com/opensearch-project/OpenSearch/pull/11069))
 
 ### Dependencies
 - Bump `com.google.api.grpc:proto-google-common-protos` from 2.10.0 to 2.25.1 ([#10208](https://github.com/opensearch-project/OpenSearch/pull/10208), [#10298](https://github.com/opensearch-project/OpenSearch/pull/10298))
diff --git a/libs/core/src/main/java/org/opensearch/core/common/logging/LoggerMessageFormat.java b/libs/core/src/main/java/org/opensearch/core/common/logging/LoggerMessageFormat.java
index cd75bddd680e5..c7b9bee3cbf4d 100644
--- a/libs/core/src/main/java/org/opensearch/core/common/logging/LoggerMessageFormat.java
+++ b/libs/core/src/main/java/org/opensearch/core/common/logging/LoggerMessageFormat.java
@@ -30,6 +30,13 @@
  * GitHub history for details.
  */
 
+/*
+ * This code is based on code from SFL4J 1.5.11
+ * Copyright (c) 2004-2007 QOS.ch
+ * All rights reserved.
+ * SPDX-License-Identifier: MIT
+ */
+
 package org.opensearch.core.common.logging;
 
 import java.util.HashSet;