diff --git a/src/net/http/server.go b/src/net/http/server.go
index 25573d9594..f4639a6e08 100644
--- a/src/net/http/server.go
+++ b/src/net/http/server.go
@@ -2613,6 +2613,8 @@ func (srv *Server) shouldConfigureHTTP2ForServe() bool {
 	return strSliceContains(srv.TLSConfig.NextProtos, http2NextProtoTLS)
 }
 
+// ErrServerClosed is returned by the Server's Serve, ListenAndServe,
+// and ListenAndServeTLS methods after a call to Shutdown or Close.
 var ErrServerClosed = errors.New("http: Server closed")
 
 // Serve accepts incoming connections on the Listener l, creating a