diff --git a/pkgs/development/ocaml-modules/sodium/default.nix b/pkgs/development/ocaml-modules/sodium/default.nix
new file mode 100644
index 00000000000..8c8895d4520
--- /dev/null
+++ b/pkgs/development/ocaml-modules/sodium/default.nix
@@ -0,0 +1,27 @@
+{ stdenv, fetchFromGitHub, ocaml, findlib, ocamlbuild, ctypes, libsodium }:
+
+stdenv.mkDerivation rec {
+  pname = "ocaml${ocaml.version}-sodium";
+  version = "0.6.0";
+
+  src = fetchFromGitHub {
+    owner  = "dsheets";
+    repo   = "ocaml-sodium";
+    rev    = version;
+    sha256 = "124gpi1jhac46x05gp5viykyrafnlp03v1cmkl13c6pgcs8w04pv";
+  };
+
+  buildInputs = [ ocaml findlib ocamlbuild ];
+  propagatedBuildInputs = [ ctypes libsodium ];
+
+  createFindlibDestdir = true;
+
+  hardeningDisable = stdenv.lib.optional stdenv.isDarwin "strictoverflow";
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/dsheets/ocaml-sodium;
+    description = "Binding to libsodium 1.0.9+";
+    platforms = ocaml.meta.platforms or [];
+    maintainers = [ maintainers.rixed ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 38b0d43706a..20cd2965549 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -755,6 +755,8 @@ let
 
     sedlex = callPackage ../development/ocaml-modules/sedlex { };
 
+    sodium = callPackage ../development/ocaml-modules/sodium { };
+
     spelll = callPackage ../development/ocaml-modules/spelll { };
 
     sqlite3EZ = callPackage ../development/ocaml-modules/sqlite3EZ { };