diff --git a/main.go b/main.go
index d84aca7..e8e11a4 100644
--- a/main.go
+++ b/main.go
@@ -24,7 +24,7 @@ func main() {
 		os.Exit(0)
 	}
 
-	openbsd.Pledge("stdio rpath proc exec getpw")
+	openbsd.Pledge("stdio rpath proc exec getpw unix tty")
 
 	log.SetFormatter(&log.TextFormatter{FullTimestamp: true})
 	if isVerbose {
diff --git a/openbsd/openbsd.go b/openbsd/openbsd.go
index 77c1f9e..2d02b1b 100644
--- a/openbsd/openbsd.go
+++ b/openbsd/openbsd.go
@@ -6,5 +6,5 @@ import "golang.org/x/sys/unix"
 
 // Pledge allowed system calls
 func Pledge(promises string) {
-	unix.Pledge(promises, "")
+	unix.PledgePromises(promises)
 }