diff --git a/tools/convert_database_styles b/tools/convert_database_styles
index db6c14c6..e69fa37c 100755
--- a/tools/convert_database_styles
+++ b/tools/convert_database_styles
@@ -2,7 +2,7 @@
 
 var path = require('path');
 
-var grainstore = require('grainstore');
+var grainstore = require('../node_modules/windshaft/node_modules/grainstore');
 var mapnik = require('mapnik');
 var redis = require('redis');