diff --git a/src/main/java/org/opensearch/security/ssl/http/netty/SecuritySSLNettyHttpServerTransport.java b/src/main/java/org/opensearch/security/ssl/http/netty/SecuritySSLNettyHttpServerTransport.java
index c2df3cbf98..fee1551fd6 100644
--- a/src/main/java/org/opensearch/security/ssl/http/netty/SecuritySSLNettyHttpServerTransport.java
+++ b/src/main/java/org/opensearch/security/ssl/http/netty/SecuritySSLNettyHttpServerTransport.java
@@ -43,8 +43,6 @@
 import org.opensearch.transport.SharedGroupFactory;
 
 public class SecuritySSLNettyHttpServerTransport extends Netty4HttpServerTransport {
-    static final AttributeKey<Netty4HttpChannel> HTTP_CHANNEL_KEY = AttributeKey.valueOf("opensearch-http-channel");
-
     private static final Logger logger = LogManager.getLogger(SecuritySSLNettyHttpServerTransport.class);
     private final SecurityKeyStore sks;
     private final SslExceptionHandler errorHandler;