diff --git a/packages/td-tools/src/thing-model-helpers.ts b/packages/td-tools/src/thing-model-helpers.ts
index 074b8944e..ecb434f2d 100644
--- a/packages/td-tools/src/thing-model-helpers.ts
+++ b/packages/td-tools/src/thing-model-helpers.ts
@@ -241,7 +241,7 @@ export class ThingModelHelpers {
             case "http": {
                 return new Promise((resolve, reject) => {
                     http.get(uri, (res) => {
-                        if (res.statusCode === undefined || res.statusCode !== 200) {
+                        if (res?.statusCode !== 200) {
                             reject(new Error(`http status code not 200 but ${res.statusCode} for ${uri}`));
                         }