diff --git a/envoy/extensions/filters/network/tcp_proxy/v3/tcp_proxy.proto b/envoy/extensions/filters/network/tcp_proxy/v3/tcp_proxy.proto
index d9f0db32..b0f7602a 100644
--- a/envoy/extensions/filters/network/tcp_proxy/v3/tcp_proxy.proto
+++ b/envoy/extensions/filters/network/tcp_proxy/v3/tcp_proxy.proto
@@ -184,6 +184,8 @@ message TcpProxy {
   // is defined as the period in which there are no bytes sent or received on either
   // the upstream or downstream connection. If not set, the default idle timeout is 1 hour. If set
   // to 0s, the timeout will be disabled.
+  // It is possible to dynamically override this configuration by setting a per-connection filter
+  // state object for the key ``envoy.tcp_proxy.per_connection_idle_timeout_ms``.
   //
   // .. warning::
   //   Disabling this timeout has a highly likelihood of yielding connection leaks due to lost TCP