diff --git a/build/tfs/linux/smoketest.sh b/build/tfs/linux/smoketest.sh
index c9617a5d00b..c6ef34ad766 100644
--- a/build/tfs/linux/smoketest.sh
+++ b/build/tfs/linux/smoketest.sh
@@ -30,7 +30,7 @@ function configureEnvironment {
 	git config --global user.name "VS Code Agent"
 	git config --global user.email "monacotools@microsoft.com"
 	chown -R testuser $AGENT_BUILDDIRECTORY
-	chown -R testuser /root/.npm
+	chown -R testuser /root # to allow 'npm install' to succeed in Express repository
 }
 
 function runTest {