diff --git a/node_modules/vfs-local/localfs.js b/node_modules/vfs-local/localfs.js
index 8aefb4b2..8ad51286 100644
--- a/node_modules/vfs-local/localfs.js
+++ b/node_modules/vfs-local/localfs.js
@@ -141,7 +141,8 @@ module.exports = function setup(fsOptions) {
     var waitForEnv = null;
     if (!isWin) {
         waitForEnv = [];
-        _execFile(BASH, ["-lc", "printenv -0"], function(error, stdout, stderr) {
+        // using timeout because bash initialization may open a prompt blocking this call
+        _execFile(BASH, ["-lc", "printenv -0"], { timeout: 1500 }, function(error, stdout, stderr) {
             var pending = waitForEnv;
             waitForEnv = null;
             if (!error && !stderr && stdout) {