diff --git a/path.go b/path.go
index <HASH>..<HASH> 100644
--- a/path.go
+++ b/path.go
@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 package scp
diff --git a/path_windows.go b/path_windows.go
index <HASH>..<HASH> 100644
--- a/path_windows.go
+++ b/path_windows.go
@@ -1,3 +1,4 @@
+//go:build windows
 // +build windows
 
 package scp
diff --git a/sink_test.go b/sink_test.go
index <HASH>..<HASH> 100644
--- a/sink_test.go
+++ b/sink_test.go
@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 package scp_test
diff --git a/source_test.go b/source_test.go
index <HASH>..<HASH> 100644
--- a/source_test.go
+++ b/source_test.go
@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 package scp_test
Add go <I> style build constraints applied by `go fmt`