diff --git a/mapper_linux_test.go b/mapper_linux_test.go
index 8148e24..6cbd158 100644
--- a/mapper_linux_test.go
+++ b/mapper_linux_test.go
@@ -4,7 +4,6 @@
 package kong_test
 
 import (
-	"os"
 	"testing"
 
 	"github.com/stretchr/testify/require"