diff --git a/ocaml-curses.spec b/ocaml-curses.spec
index d6fc934..2d61dab 100644
--- a/ocaml-curses.spec
+++ b/ocaml-curses.spec
@@ -1,3 +1,6 @@
+# OCaml packages not built on i686 since OCaml 5 / Fedora 39.
+ExcludeArch: %{ix86}
+
 Name:           ocaml-curses
 Version:        1.0.11
 Release:        1%{?dist}