diff --git a/lib/compass.js b/lib/compass.js
index 72223a6..83c0eb0 100644
--- a/lib/compass.js
+++ b/lib/compass.js
@@ -22,6 +22,7 @@ var defaults = {
   require: false,
   logging: true,
   load_all: false,
+  env_path:[],
   project: process.cwd(),
   bundle_exec: false,
   debug: false,
@@ -59,9 +60,9 @@ module.exports = function(files, opts, callback) {
 
   // check command exist
   if (opts.bundle_exec) {
-    compassExecutable = helpers.command('bundle', callback);
+    compassExecutable = helpers.command('bundle', opts.env_path,callback);
   } else {
-    compassExecutable = helpers.command(compassExecutable, callback);
+    compassExecutable = helpers.command(compassExecutable, opts.env_path, callback);
   }
 
   if (!compassExecutable) {
diff --git a/lib/helpers.js b/lib/helpers.js
index 7c41e5c..665a7b5 100644
--- a/lib/helpers.js
+++ b/lib/helpers.js
@@ -1,16 +1,25 @@
 'use strict';
 
 var which = require('which').sync;
+var isWindows = process.platform === 'win32' ||
+  process.env.OSTYPE === 'cygwin' ||
+  process.env.OSTYPE === 'msys';
+var COLON = isWindows ? ';' : ':';
 
 module.exports.isArray = function(obj) {
   return Object.prototype.toString.call(obj) === '[object Array]';
 };
 
-module.exports.command = function(cmd, callback) {
+module.exports.command = function(cmd, env_path,callback) {
   var command;
-
+  var opt;
+  if(env_path.length>0){
+    opt = {
+      path:env_path.join(COLON)
+    };
+  }
   try {
-    command = which(cmd);
+    command = which(cmd, opt);
   } catch (err) {
 
     if (callback) {