diff --git a/helper/type_mapping.js b/helper/type_mapping.js
index f2e49d8f..39abb835 100644
--- a/helper/type_mapping.js
+++ b/helper/type_mapping.js
@@ -17,7 +17,7 @@ function addStandardTargetsToAliases(standard, aliases) {
  */
 
 // a list of all sources
-var SOURCES = ['openstreetmap', 'openaddresses', 'geonames', 'quattroshapes', 'whosonfirst'];
+var SOURCES = ['openstreetmap', 'openaddresses', 'geonames', 'whosonfirst'];
 
 /*
  * A list of alternate names for sources, mostly used to save typing
@@ -26,7 +26,6 @@ var SOURCE_ALIASES = {
   'osm': ['openstreetmap'],
   'oa': ['openaddresses'],
   'gn': ['geonames'],
-  'qs': ['quattroshapes'],
   'wof': ['whosonfirst']
 };
 
diff --git a/public/attribution.md b/public/attribution.md
index 2302c093..732e20d4 100644
--- a/public/attribution.md
+++ b/public/attribution.md
@@ -3,5 +3,5 @@
 * Data from
    * [OpenStreetMap](http://www.openstreetmap.org/copyright) © OpenStreetMap contributors under [ODbL](http://opendatacommons.org/licenses/odbl/)
    * [OpenAddresses](http://openaddresses.io) under a [Creative Commons Zero](https://github.com/openaddresses/openaddresses/blob/master/sources/LICENSE) public domain designation
-   * [Quattroshapes](https://github.com/foursquare/quattroshapes/blob/master/LICENSE.md) under [CC-BY-2.0](https://creativecommons.org/licenses/by/2.0/)
    * [GeoNames](http://www.geonames.org/) under [CC-BY-3.0](https://creativecommons.org/licenses/by/2.0/)
+   * [WhosOnFirst](http://whosonfirst.mapzen.com)