1 files changed, 6 insertions, 2 deletions
diff --git a/pkgs/development/ocaml-modules/xmlm/default.nix b/pkgs/development/ocaml-modules/xmlm/default.nix
index bd19ab716f6..dacaeea49f4 100644
--- a/pkgs/development/ocaml-modules/xmlm/default.nix
+++ b/pkgs/development/ocaml-modules/xmlm/default.nix
@@ -5,6 +5,9 @@ let
   webpage = "http://erratique.ch/software/${pname}";
   ocaml_version = (builtins.parseDrvName ocaml.name).version;
 in
+
+assert stdenv.lib.versionAtLeast ocaml_version "3.12";
+
 stdenv.mkDerivation rec {
 
   name = "ocaml-${pname}-${version}";
@@ -28,10 +31,11 @@ stdenv.mkDerivation rec {
     ln -s $out/lib/${pname} $out/lib/ocaml/${ocaml_version}/site-lib/
   '';
 
-  meta = {
+  meta = with stdenv.lib; {
     description = "An OCaml streaming codec to decode and encode the XML data format";
     homepage = "${webpage}";
     platforms = ocaml.meta.platforms;
-    license = stdenv.lib.licenses.bsd3;
+    maintainers = [ maintainers.vbgl ];
+    license = licenses.bsd3;
   };
 }