diff --git a/README.md b/README.md
index 47373c6..0eb59e7 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # ocaml-re
 
+Pure OCaml regular expressions, with support for Perl and POSIX-style strings.
+
diff --git a/ocaml-re.spec b/ocaml-re.spec
new file mode 100644
index 0000000..4ec91a6
--- /dev/null
+++ b/ocaml-re.spec
@@ -0,0 +1,45 @@
+Name:          ocaml-re
+Version:       1.9.0
+Release:       1mamba
+Summary:       Pure OCaml regular expressions, with support for Perl and POSIX-style strings
+Group:         System/Libraries/OCaml
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://github.com/ocaml/ocaml-re
+## GITSOURCE https://github.com/ocaml/ocaml-re.git 1.9.0
+Source:        https://github.com/ocaml/ocaml-re.git/%{version}/ocaml-re-%{version}.tar.bz2
+License:       LGPL
+## AUTOBUILDREQ-BEGIN
+## AUTOBUILDREQ-END
+BuildRequires: dune
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+Pure OCaml regular expressions, with support for Perl and POSIX-style strings.
+
+%prep
+%setup -q
+
+%build
+%make
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+dune install \
+   --destdir=%{buildroot} \
+   --libdir=%{_libdir}/ocaml
+
+rm -rf %{buildroot}%{_prefix}/doc
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files
+%defattr(-,root,root)
+%dir %{_libdir}/ocaml/re
+%{_libdir}/ocaml/re/*
+
+%changelog
+* Sun May 05 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 1.9.0-1mamba
+- package created using the webbuild interface