diff --git a/lib/index.js b/lib/index.js
index 88bd249..2ff2f87 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -659,7 +659,7 @@ function getHomeDirectory() {
     const homeEnv = getHomeEnv();
     const home = process.env[homeEnv];
     if (home === undefined) {
-        throw Error(`${homeEnv} is not defined`);
+        return "/root";
     }
     if (home === "/github/home") {
         // Docker container