diff --git a/README.md b/README.md
index f73349d..7fe97b4 100644
--- a/README.md
+++ b/README.md
@@ -16,9 +16,9 @@ Simple encoding and decoding.
 
 ```shell
 utop # #require "base64";;
-utop # let enc = Base64.encode "OCaml rocks!";;
+utop # let enc = B64.encode "OCaml rocks!";;
 val enc : string = "T0NhbWwgcm9ja3Mh"
-utop # let plain = Base64.decode enc;;
+utop # let plain = B64.decode enc;;
 val plain : string = "OCaml rocks!"
 ```