diff --git a/jetty-http2/http2-server/src/main/java/org/eclipse/jetty/http2/server/HTTP2ServerConnectionFactory.java b/jetty-http2/http2-server/src/main/java/org/eclipse/jetty/http2/server/HTTP2ServerConnectionFactory.java
index b2c6be75869..69f8c7fcd1b 100644
--- a/jetty-http2/http2-server/src/main/java/org/eclipse/jetty/http2/server/HTTP2ServerConnectionFactory.java
+++ b/jetty-http2/http2-server/src/main/java/org/eclipse/jetty/http2/server/HTTP2ServerConnectionFactory.java
@@ -107,7 +107,7 @@ public class HTTP2ServerConnectionFactory extends AbstractHTTP2ServerConnectionF
             HttpConfiguration httpConfig = getHttpConfiguration();
             Integer mhls = frame.getSettings().get(SettingsFrame.MAX_HEADER_LIST_SIZE);
             if (mhls != null && mhls < httpConfig.getResponseHeaderSize())
-                httpConfig.setResponseHeaderSize(mhls);
+                LOG.warn("MAX_HEADER_LIST_SIZE<{} for {}",getHttpConfiguration().getResponseHeaderSize(),session);
         }
 
         @Override