diff --git a/containers-data.opam b/containers-data.opam
index 4ba3e1cc..a8d5b357 100644
--- a/containers-data.opam
+++ b/containers-data.opam
@@ -3,7 +3,7 @@ version: "3.5"
 author: "Simon Cruanes"
 maintainer: "simon.cruanes.2007@m4x.org"
 synopsis: "A set of advanced datatypes for containers"
-license: "BSD-2"
+license: "BSD-2-Clause"
 build: [
   ["dune" "build" "-p" name "-j" jobs]
   ["dune" "build" "@doc" "-p" name ] {with-doc}
diff --git a/containers-thread.opam b/containers-thread.opam
index f721b89c..d8402ac6 100644
--- a/containers-thread.opam
+++ b/containers-thread.opam
@@ -2,7 +2,7 @@ opam-version: "2.0"
 version: "3.5"
 author: "Simon Cruanes"
 maintainer: "simon.cruanes.2007@m4x.org"
-license: "BSD-2"
+license: "BSD-2-Clause"
 synopsis: "An extension of containers for threading"
 build: [
   ["dune" "build" "-p" name "-j" jobs]
diff --git a/containers.opam b/containers.opam
index f4bb3a16..6aa828fa 100644
--- a/containers.opam
+++ b/containers.opam
@@ -3,7 +3,7 @@ name: "containers"
 version: "3.5"
 author: "Simon Cruanes"
 maintainer: "simon.cruanes.2007@m4x.org"
-license: "BSD-2"
+license: "BSD-2-Clause"
 synopsis: "A modular, clean and powerful extension of the OCaml standard library"
 build: [
   ["dune" "build" "-p" name "-j" jobs]