diff --git a/bundles/org.openhab.automation.jsscripting/src/main/resources/node_modules/@jsscripting-globals.js b/bundles/org.openhab.automation.jsscripting/src/main/resources/node_modules/@jsscripting-globals.js
index 53750484d19..840f316c2c5 100644
--- a/bundles/org.openhab.automation.jsscripting/src/main/resources/node_modules/@jsscripting-globals.js
+++ b/bundles/org.openhab.automation.jsscripting/src/main/resources/node_modules/@jsscripting-globals.js
@@ -29,7 +29,7 @@
       }
       // JSON.stringify all objects that do not polyfill toString()
       const str = value.toString();
-      if (typeof value === 'object' && (str === '[object Object]') || str === '[object Java]') {
+      if (typeof value === 'object' && (str === '[object Object]' || str === '[object Java]')) {
         return JSON.stringify(value, null, 2);
       }
       return str;
@@ -164,11 +164,11 @@
   // Polyfill common NodeJS functions onto the global object
   globalThis.console = console;
   globalThis.setTimeout = function (functionRef, delay, ...args) {
-    ThreadsafeTimers.setTimeout(() => functionRef(...args), delay);
+    return ThreadsafeTimers.setTimeout(() => functionRef(...args), delay);
   };
   globalThis.clearTimeout = ThreadsafeTimers.clearTimeout;
   globalThis.setInterval = function (functionRef, delay, ...args) {
-    ThreadsafeTimers.setInterval(() => functionRef(...args), delay);
+    return ThreadsafeTimers.setInterval(() => functionRef(...args), delay);
   };
   globalThis.clearInterval = ThreadsafeTimers.clearInterval;