diff --git a/check/check.go b/check/check.go
index 7a41b199c5c84a34993ae62b9e2291c0e2cf7e8d..4f91340380f171a3a4eb9b7c02d7d5e626cae1f7 100644
--- a/check/check.go
+++ b/check/check.go
@@ -18,6 +18,7 @@ import (
 	"bytes"
 	"fmt"
 	"io"
+	"os"
 	"os/exec"
 	"regexp"
 	"strings"