diff --git a/README.md b/README.md
index 6a6afc7..0e96fea 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # indexeddb-chunk-store
-IndexedDB chunk store
+IndexedDB chunk store that is abstract-chunk-store compliant
+
+[![abstract chunk store](https://cdn.rawgit.com/mafintosh/abstract-chunk-store/master/badge.svg)](https://github.com/mafintosh/abstract-chunk-store)