diff --git a/ocaml-facile.spec b/ocaml-facile.spec
index f560960..3df9e47 100644
--- a/ocaml-facile.spec
+++ b/ocaml-facile.spec
@@ -4,7 +4,7 @@
 
 Name:          ocaml-facile
 Version:       1.1
-Release:       34%{?dist}
+Release:       35%{?dist}
 Summary:       OCaml library for constraint programming
 Summary(fr):   Librairie OCaml de programmation par contraintes
 License:       LGPLv2+
@@ -77,7 +77,11 @@ developing applications that use %{name}.
 # This is not autoconf, but a simple custom configure script.
 # The --faciledir directory is only used for "make install".
 ./configure --faciledir $RPM_BUILD_ROOT%{_libdir}/ocaml/facile
+%if %opt
 make
+%else
+make OCAMLC=ocamlc OCAMLMLI=ocamlc
+%endif
 
 %install
 mkdir -p $RPM_BUILD_ROOT%{_libdir}/ocaml
@@ -100,6 +104,9 @@ make install
 %{_libdir}/ocaml/facile/*.mli
 
 %changelog
+* Tue Jul 21 2015 Richard W.M. Jones <rjones@redhat.com> - 1.1-35
+- Enable bytecode compilation.
+
 * Wed Jun 24 2015 Richard W.M. Jones <rjones@redhat.com> - 1.1-34
 - ocaml-4.02.2 final rebuild.