diff --git a/ocaml-cppo.spec b/ocaml-cppo.spec
index b92b62a..db1852e 100644
--- a/ocaml-cppo.spec
+++ b/ocaml-cppo.spec
@@ -18,6 +18,7 @@
 
 Name:           ocaml-cppo
 Version:	1.0.0
+%{ocaml_preserve_bytecode}
 Release:	1
 License:	BSD-2-Clause
 Summary:	The C preprocessor written in OCaml