diff --git a/examples/foundation/nswrap.toml b/examples/foundation/nswrap.toml
index 9aa0917..1c22470 100644
--- a/examples/foundation/nswrap.toml
+++ b/examples/foundation/nswrap.toml
@@ -16,3 +16,4 @@ Classes = [
 ]
 SysImports = [ "Foundation/Foundation.h" ]
 Pragma = [ 'clang diagnostic ignored "-Wformat-security"' ]
+VaArgs = 32
diff --git a/main.go b/main.go
index 8694f2b..f61c2d7 100644
--- a/main.go
+++ b/main.go
@@ -173,8 +173,9 @@ func Start() (err error) {
 	w.SysImport(Config.SysImports)
 	w.Pragma(Config.Pragma)
 	if Config.VaArgs == 0 {
-		w.VaArgs = 16
+		Config.VaArgs = 16
 	}
+	w.VaArgs = Config.VaArgs
 	for _, u := range tree {
 		for _, n := range(u.Children()) {
 			switch x := n.(type) {