diff --git a/scripts/testExternalConverter.js b/scripts/testExternalConverter.js
index 7b7c02fa5..db63e253f 100644
--- a/scripts/testExternalConverter.js
+++ b/scripts/testExternalConverter.js
@@ -1,5 +1,22 @@
 const assert = require('assert');
+const vm = require('vm');
+const fs = require('fs');
+const path = require('path');
 const filename = process.argv[2];
-const converter = require('./' + filename);
+const moduleCode = fs.readFileSync(filename);
+const moduleFakePath = path.join(__dirname, 'externally-loaded.js');
+const sandbox = {
+    require: require,
+    module: {},
+    console,
+    setTimeout,
+    clearTimeout,
+    setInterval,
+    clearInterval,
+    setImmediate,
+    clearImmediate,
+};
+vm.runInNewContext(moduleCode, sandbox, moduleFakePath);
+const converter = sandbox.module.exports;
 assert(!converter.toZigbee.includes(undefined));
 assert(!converter.fromZigbee.includes(undefined));