1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/development/ocaml-modules/ulex/default.nix b/pkgs/development/ocaml-modules/ulex/default.nix
index 61c52278621..1e0632387e3 100644
--- a/pkgs/development/ocaml-modules/ulex/default.nix
+++ b/pkgs/development/ocaml-modules/ulex/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation {
     homepage = http://www.cduce.org/download.html;
     description = "A lexer generator for Unicode and OCaml";
     license = stdenv.lib.licenses.mit;
-    platforms = ocaml.meta.platforms;
+    platforms = ocaml.meta.platforms or [];
     maintainers = [ stdenv.lib.maintainers.roconnor ];
   };
 }