From 59d04b9c51f9467dc55ea41248570f7f4b979b64 Mon Sep 17 00:00:00 2001
From: danielpeintner <daniel.peintner@gmail.com>
Date: Tue, 12 Sep 2023 10:03:47 +0200
Subject: [PATCH] Update packages/td-tools/src/td-parser.ts

Co-authored-by: Jan Romann <jan.romann@uni-bremen.de>
---
 packages/td-tools/src/td-parser.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/td-tools/src/td-parser.ts b/packages/td-tools/src/td-parser.ts
index af3fc89e7..fe2f73293 100644
--- a/packages/td-tools/src/td-parser.ts
+++ b/packages/td-tools/src/td-parser.ts
@@ -222,7 +222,7 @@ export function serializeTD(thing: Thing): string {
     const copy = JSON.parse(JSON.stringify(thing));
 
     // clean-ups
-    if (copy.security === undefined || copy.security.length === 0) {
+    if (copy?.security.length === 0) {
         copy.securityDefinitions = {
             nosec_sc: { scheme: "nosec" },
         };