diff --git a/ocaml-rpm-macros.spec b/ocaml-rpm-macros.spec
index de90b46..59e285e 100644
--- a/ocaml-rpm-macros.spec
+++ b/ocaml-rpm-macros.spec
@@ -101,7 +101,7 @@ tee %{buildroot}%{_rpmconfigdir}/macros.d/macros.%{name} <<'_EOF_'
 	w %%{name}.files.devel\
 	d\
 	}\
-	/\\/[^/]\\+\\.\\(a\\|annot\|cmx\\|cmxa\\|cma\\|cmi\\|cmt\\|cmti\\|exe\\|h\\|ml\\|mli\\)$/{\
+	/\\/[^/]\\+\\.\\(a\\|annot\\|cmx\\|cmxa\\|cma\\|cmi\\|cmt\\|cmti\\|exe\\|h\\|ml\\|mli\\)$/{\
 	w %%{name}.files.devel\
 	s@\\/[^/]\\+$@@\
 	s@^@%%dir @\