diff --git a/lib/index.js b/lib/index.js
index 1f0cca3..8cedfc2 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -20,8 +20,13 @@ var bufferStream = function(stream){
 
 var execute = function ( path, script, vars, cb ) {
   if ( cb === undefined ) cb = vars;
+  if ( typeof path !== 'undefined') {
+    opts = { cwd: dirname(path) }
+  } else {
+    opts = {}
+  }
 
-  var cp = spawn("osascript", ["-ss", "-"], { cwd: dirname(path) });
+  var cp = spawn("osascript", ["-ss", "-"], opts);
 
   var outBuffer = bufferStream(cp.stdout);
   var errBuffer = bufferStream(cp.stderr);