diff --git a/filesystems_darwin.go b/filesystems_darwin.go
index 1798f5a9..0172b8fe 100644
--- a/filesystems_darwin.go
+++ b/filesystems_darwin.go
@@ -1,3 +1,4 @@
+//go:build darwin
 // +build darwin
 
 package main
diff --git a/filesystems_freebsd.go b/filesystems_freebsd.go
index 3d2b9ca1..a0961186 100644
--- a/filesystems_freebsd.go
+++ b/filesystems_freebsd.go
@@ -1,3 +1,4 @@
+//go:build freebsd
 // +build freebsd
 
 package main
diff --git a/filesystems_linux.go b/filesystems_linux.go
index 2fab8986..4edd3347 100644
--- a/filesystems_linux.go
+++ b/filesystems_linux.go
@@ -1,3 +1,4 @@
+//go:build linux
 // +build linux
 
 package main
diff --git a/filesystems_openbsd.go b/filesystems_openbsd.go
index 83559861..ce37b474 100644
--- a/filesystems_openbsd.go
+++ b/filesystems_openbsd.go
@@ -1,3 +1,4 @@
+//go:build openbsd
 // +build openbsd
 
 package main
diff --git a/filesystems_windows.go b/filesystems_windows.go
index 96bbb3c2..a30becf5 100644
--- a/filesystems_windows.go
+++ b/filesystems_windows.go
@@ -1,3 +1,4 @@
+//go:build windows
 // +build windows
 
 package main
diff --git a/mounts_darwin.go b/mounts_darwin.go
index 82ef1b3a..6a58f80f 100644
--- a/mounts_darwin.go
+++ b/mounts_darwin.go
@@ -1,3 +1,4 @@
+//go:build darwin
 // +build darwin
 
 package main
diff --git a/mounts_freebsd.go b/mounts_freebsd.go
index ebff1c44..5ade672b 100644
--- a/mounts_freebsd.go
+++ b/mounts_freebsd.go
@@ -1,3 +1,4 @@
+//go:build freebsd
 // +build freebsd
 
 package main
diff --git a/mounts_linux.go b/mounts_linux.go
index ff241f1a..42939859 100644
--- a/mounts_linux.go
+++ b/mounts_linux.go
@@ -1,3 +1,4 @@
+//go:build linux
 // +build linux
 
 package main
diff --git a/mounts_openbsd.go b/mounts_openbsd.go
index 8c88be5c..147998a1 100644
--- a/mounts_openbsd.go
+++ b/mounts_openbsd.go
@@ -1,3 +1,4 @@
+//go:build openbsd
 // +build openbsd
 
 package main
diff --git a/mounts_windows.go b/mounts_windows.go
index 3705b36b..47dd8a73 100644
--- a/mounts_windows.go
+++ b/mounts_windows.go
@@ -1,3 +1,4 @@
+//go:build windows
 // +build windows
 
 package main