diff --git a/geocoder/admin0/README.md b/geocoder/admin0/README.md
index 905c558..d5e7f47 100644
--- a/geocoder/admin0/README.md
+++ b/geocoder/admin0/README.md
@@ -274,6 +274,9 @@ SELECT (admin0_synonym_lookup(Array['United States', 'ESP'])).*
 
 In order to test the data and the functions created under the script avaialble in this folder, you will need to run `bash test.sh` from `test/data` and `test/functions`. These functions test the amount of geometries generated, their bounding box, and the bounding box of the results generated by the geocoder functions. The tests also ensure a minimum quality in the synonyms table/function, checking that the official name (in English) for the regions is recognised.
 
+# Disputed boundaries
+For country boundaries, we use the data provided by Natural Earth Data. The whole information for the different Disputed Areas in the world, as well as their geometries can be found here: http://www.naturalearthdata.com/downloads/10m-cultural-vectors/10m-admin-0-breakaway-disputed-areas/
+
 # Known issues
 
 # Historic