diff --git a/Gruntfile.js b/Gruntfile.js
index ba658867b6..6abbc4b711 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -361,7 +361,7 @@ module.exports = function(grunt) {
             },
 
             python_packages: {
-                command: 'virtualenv python && bash -c \"PATH=' + pythonPath + ':${PATH} pip install xmltodict isodate\"'
+                command: 'PATH=python/bin:${PATH} virtualenv python && PATH=python/bin:${PATH} pip install xmltodict isodate'
             },
 
             rpmbuild: {