main.go | 6 +++++-

diff --git a/main.go b/main.go
index 855fb14f37eae8b6a207e1f1fe6c3f77cd4b5139..9f65a79dddf2f81e98c5f61a5d35608698019a6b 100644
--- a/main.go
+++ b/main.go
@@ -49,9 +49,13 @@ 	if len(flag.Args()) == 0 {
 		flag.Usage()
 		os.Exit(1)
 	}
+	var fn string
 	if *maxSecs > 0 {
 		go func() {
 			time.Sleep(time.Duration(*maxSecs) * time.Second)
+			if fn != "" {
+				os.Remove(fn)
+			}
 			fatal("max aliveness time is reached")
 		}()
 	}
@@ -114,7 +118,7 @@ 	rnd := make([]byte, 12)
 	if _, err = io.ReadFull(rand.Reader, rnd); err != nil {
 		fatal(err.Error())
 	}
-	fn := "." + base32.StdEncoding.WithPadding(base32.NoPadding).EncodeToString(rnd) +
+	fn = "." + base32.StdEncoding.WithPadding(base32.NoPadding).EncodeToString(rnd) +
 		ext
 	fd, err := os.OpenFile(fn, os.O_RDWR|os.O_CREATE|os.O_EXCL, os.FileMode(0666))
 	if err != nil {