diff --git a/opam/descr b/opam/descr
new file mode 100644
index 0000000..7dd4292
--- /dev/null
+++ b/opam/descr
@@ -0,0 +1,4 @@
+Simple sequence abstract datatype.
+
+It is intented to transfer a finite number of elements from one data structure
+to another, perhaps with some intermediate transformations.
diff --git a/opam/opam b/opam/opam
new file mode 100644
index 0000000..e56e6cf
--- /dev/null
+++ b/opam/opam
@@ -0,0 +1,10 @@
+opam-version: "1"
+maintainer: "simon.cruanes@inria.fr"
+build: [
+    [make]
+    [make "install"]
+]
+remove: [
+    ["ocamlfind" "remove" "sequence"]
+]
+depends: ["ocamlfind"]
diff --git a/opam/url b/opam/url
new file mode 100644
index 0000000..58a4825
--- /dev/null
+++ b/opam/url
@@ -0,0 +1,2 @@
+archive: "https://github.com/c-cube/sequence/archive/0.1.tar.gz"
+checksum: "967d9d96332effb340f96c86c6a6bb12"