diff --git a/test/install-apt.test.js b/test/install-apt.test.js
index 9adc3f6..6b30bcb 100644
--- a/test/install-apt.test.js
+++ b/test/install-apt.test.js
@@ -79,7 +79,8 @@ function runScenario({ candInitial, candAfterUpdate, candAfterNodesource, preexi
 
   const read = (p) => (fs.existsSync(p) ? fs.readFileSync(p, 'utf8') : null);
   const mode = (p) => (fs.existsSync(p) ? fs.statSync(p).mode & 0o777 : null);
-  return {
+  const result = {
+    res,
     aptEtc,
     nodesourceList: read(path.join(aptEtc, 'sources.list.d', 'nodesource.list')),
     nodesourceListMode: mode(path.join(aptEtc, 'sources.list.d', 'nodesource.list')),