diff --git a/pkg/util/flock/flock_unix.go b/pkg/util/flock/flock_unix.go
index 366090ccfd1..73a608020e7 100644
--- a/pkg/util/flock/flock_unix.go
+++ b/pkg/util/flock/flock_unix.go
@@ -42,7 +42,7 @@ func Acquire(path string) error {
 	if lockfile, err = os.OpenFile(path, os.O_RDWR|os.O_CREATE, 0600); err != nil {
 		return err
 	}
-
+	defer lockfile.Close()
 	opts := unix.Flock_t{Type: unix.F_WRLCK}
 	if err := unix.FcntlFlock(lockfile.Fd(), unix.F_SETLKW, &opts); err != nil {
 		return err