diff --git a/containers.opam b/containers.opam
index dc9cf36f..4d2d5f4c 100644
--- a/containers.opam
+++ b/containers.opam
@@ -3,6 +3,7 @@ name: "containers"
 version: "2.3"
 author: "Simon Cruanes"
 maintainer: "simon.cruanes.2007@m4x.org"
+synopsis: "A modular, clean and powerful extension of the OCaml standard library"
 build: [
   ["dune" "build" "-p" name "-j" jobs]
   [ "dune" "build" "@doc" "-p" name ] {with-doc}