diff --git a/ocaml-libvirt.spec b/ocaml-libvirt.spec
index 938b144..9899a83 100644
--- a/ocaml-libvirt.spec
+++ b/ocaml-libvirt.spec
@@ -157,7 +157,7 @@ _EOF_
 %{_bindir}/*
 %dir %{_libdir}/ocaml
 %dir %{_libdir}/ocaml/*
-%if %{defined ocaml_native_compiler}
+%if 0%{?ocaml_native_compiler}
 %{_libdir}/ocaml/*/*.cmxs
 %endif
 %{_libdir}/ocaml/*/*.so
@@ -169,7 +169,7 @@ _EOF_
 %dir %{_libdir}/ocaml
 %dir %{_libdir}/ocaml/*
 %{_libdir}/ocaml/*/*.a
-%if %{defined ocaml_native_compiler}
+%if 0%{?ocaml_native_compiler}
 %{_libdir}/ocaml/*/*.cmx
 %{_libdir}/ocaml/*/*.cmxa
 %endif