diff --git a/cmd/pgen/main.go b/cmd/pgen/main.go
index 6777c7f..7b96dd6 100644
--- a/cmd/pgen/main.go
+++ b/cmd/pgen/main.go
@@ -23,7 +23,7 @@ func (v *visitor) Visit(node ast.Node) ast.Visitor {
 
 	if !reg.MatchString(id.Name) { return v }
 
-	if len(x.Args) != 2 {
+	if len(x.Args) < 2 {
 		log.Fatal("Wrong number of arguments in persistT call.")
 	}
 	var tp string
@@ -36,6 +36,10 @@ func (v *visitor) Visit(node ast.Node) ast.Visitor {
 	case *ast.CompositeLit:
 		tp = types.TypeString(info.TypeOf(arg),types.RelativeTo(pkg))
 	case *ast.Ident:
+		if arg.Name == "true" || arg.Name == "false" {
+			tp = "bool"
+			break
+		}
 		if arg.Obj.Kind != ast.Var { return v }
 		inner := pkg.Scope().Innermost(arg.Pos())
 		_,obj := inner.LookupParent(arg.Obj.Name,arg.Pos())
diff --git a/cmd/pgen/template.go b/cmd/pgen/template.go
index 27ac21f..048cac0 100644
--- a/cmd/pgen/template.go
+++ b/cmd/pgen/template.go
@@ -10,13 +10,9 @@ import (
 
 type Var_N persist.Var
 
-func New(name string, xs ..._T) *Var_N {
-	var x _T
+func New(name string, x _T, opt ...persist.Option) *Var_N {
 	gob.Register(x)
-	if len(xs) > 0 {
-		x = xs[0]
-	}
-	ptr := persist.New(name, x)
+	ptr := persist.New(name, x, opt...)
 	ret := (*Var_N)(unsafe.Pointer(ptr))
 	return ret
 }
diff --git a/test/basic/main.go b/test/basic/main.go
index 4550890..de32520 100644
--- a/test/basic/main.go
+++ b/test/basic/main.go
@@ -36,6 +36,8 @@ func main() {
 	y6 = y6p.Get()
 	y7p := persistIntArray("y7",[]int{1,2,3})
 	_ = y7p
+	y8p := persistBool("y8",true)
+	_ = y8p
 
 	z := func(interface{}) {
 		_ = persistFloat("y7",1.0)