diff --git a/README.md b/README.md
index ce9b0257..68262673 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ Available Data
     relevance
     nationality
     geolocation (latlng)
-    languages
+    ISO 639-1 languages
     translations
     top-level domain (tld)
     code ISO 3166-1 alpha-2 (cca2)