diff --git a/sysinfo_windows.go b/sysinfo_windows.go
index 6833906..b463ca7 100644
--- a/sysinfo_windows.go
+++ b/sysinfo_windows.go
@@ -1,3 +1,4 @@
+//go:build windows
 // +build windows
 
 // Copyright 2017 Google Inc.
@@ -25,6 +26,11 @@ import (
 	"github.com/StackExchange/wmi"
 )
 
+var (
+	// ErrNoNetworkAdapter is returned when no network adapter is detected.
+	ErrNoNetworkAdapter = errors.New("network adapter not detected")
+)
+
 // User will obtain the current user from the OS.
 func User() (string, error) {
 	if u := os.Getenv("USERNAME"); u != "" {
@@ -109,7 +115,7 @@ func NetInfo() ([]string, error) {
 	}
 
 	if len(netInfo) == 0 {
-		return nil, fmt.Errorf("network adapter not detected. got: %d want: >= 1", len(netInfo))
+		return nil, fmt.Errorf("%w got: %d want: >= 1", ErrNoNetworkAdapter, len(netInfo))
 	}
 
 	var macs []string