diff --git a/datapackage.json b/datapackage.json
index 2624594..5509cf9 100644
--- a/datapackage.json
+++ b/datapackage.json
@@ -109,5 +109,6 @@
     }
   ],
   "title": "Airport Codes",
-  "version": "0.2.0"
+  "version": "0.2.0",
+  "collection": "reference-data"
 }
\ No newline at end of file