--- index.js.orig	2013-02-10 12:46:47.756099013 +0000
+++ index.js	2013-02-10 12:47:00.195484506 +0000
@@ -7,5 +7,5 @@
 ['2.0.0', '2.0.1', '2.0.2', '2.1.0', '2.1.1', 'latest'].map(function(version) {
     module.exports.version[version] = JSON.parse(
         fs.readFileSync(
-            path.join(__dirname, version, 'reference.json'), 'utf8'));
+            path.join('/usr/share/nodejs-mapnik-reference', version, 'reference.json'), 'utf8'));
 });