diff --git a/logutil/swap_signal_windows.go b/logutil/swap_signal_windows.go
index b5e7195..8a599be 100644
--- a/logutil/swap_signal_windows.go
+++ b/logutil/swap_signal_windows.go
@@ -1,3 +1,4 @@
+//go:build windows
 // +build windows
 
 package logutil