diff --git a/kernel/server/serve.go b/kernel/server/serve.go
index f8efe7670..ced83e71a 100644
--- a/kernel/server/serve.go
+++ b/kernel/server/serve.go
@@ -96,6 +96,7 @@ func Serve(fastMode bool) {
 			os.Exit(util.ExitCodeUnavailablePort)
 		}
 	}
+	util.ServerPort = port
 
 	pid := fmt.Sprintf("%d", os.Getpid())
 	if !fastMode {