diff --git a/ocaml-stdlib-shims.spec b/ocaml-stdlib-shims.spec
index 14d597e..287717d 100644
--- a/ocaml-stdlib-shims.spec
+++ b/ocaml-stdlib-shims.spec
@@ -51,35 +51,54 @@ developing applications that use %{name}.
 %install
 %ocaml_dune_install
 
+> %{name}.files
+> %{name}.files.devel
+find %{buildroot}$(ocamlc -where) | sed -ne '
+s@^%{buildroot}@@
+/\/\(META\|dune-package\|opam\)$/{
+w %{name}.files.devel
+s@\/[^/]\+$@@
+s@^@%%dir @
+w %{name}.files.devel
+s@\/[^/]\+$@@
+w %{name}.files.devel
+d
+}
+/\/[^/]\+\.\(a\|cmx\|cmxa\|cma\|cmi\|cmt\|cmti\|ml\|mli\)$/{
+w %{name}.files.devel
+s@\/[^/]\+$@@
+s@^@%%dir @
+w %{name}.files.devel
+s@\/[^/]\+$@@
+w %{name}.files.devel
+d
+}
+/\/[^/]\+\.\(cmxs\)$/{
+w %{name}.files
+s@\/[^/]\+$@@
+s@^@%%dir @
+w %{name}.files
+s@\/[^/]\+$@@
+w %{name}.files
+d
+}
+p
+'
+for i in %{name}.files %{name}.files.devel
+do
+  sort -u $i > $$
+  mv $$ $i
+done
+head -n 1234 %{name}.files %{name}.files.devel
+
 %check
 %ocaml_dune_test
 
-%files
+%files -f %{name}.files
 %license LICENSE
 %doc README.md
-%dir %{_libdir}/ocaml
-%dir %{_libdir}/ocaml/*
-%if 0%{?ocaml_native_compiler}
-%{_libdir}/ocaml/*/*.cmxs
-%endif
 
-%files devel
-%dir %{_libdir}/ocaml
-%dir %{_libdir}/ocaml/*
-%if 0%{?ocaml_native_compiler}
-%{_libdir}/ocaml/*/*.a
-%{_libdir}/ocaml/*/*.cmx
-%{_libdir}/ocaml/*/*.cmxa
-%endif
-%{_libdir}/ocaml/*/*.cma
-%{_libdir}/ocaml/*/*.cmi
-%{_libdir}/ocaml/*/*.cmt
-%{_libdir}/ocaml/*/*.cmti
-%{_libdir}/ocaml/*/*.ml
-%{_libdir}/ocaml/*/*.mli
-%{_libdir}/ocaml/*/META
-%{_libdir}/ocaml/*/opam
-%{_libdir}/ocaml/*/dune-package
+%files devel -f %{name}.files.devel
 
 %changelog