diff --git a/_multibuild b/_multibuild
new file mode 100644
index 0000000..835d36b
--- /dev/null
+++ b/_multibuild
@@ -0,0 +1,4 @@
+<multibuild>
+  <package>librtas-doc</package>
+</multibuild>
+
diff --git a/librtas.changes b/librtas.changes
index 5f4721a..5083aff 100644
--- a/librtas.changes
+++ b/librtas.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu May  4 11:12:28 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Add _multibuild to define 2nd spec file as additional flavor.
+  Eliminates the need for source package links in OBS.
+
 -------------------------------------------------------------------
 Wed Jan 25 09:14:32 UTC 2023 - Michal Suchanek <msuchanek@suse.com>