diff --git a/abuild.in b/abuild.in
index b169707..fd78ad0 100755
--- a/abuild.in
+++ b/abuild.in
@@ -672,6 +672,7 @@ default_doc() {
 	depends="$depends_doc"
 	install="$install_doc"
 	triggers="$triggers_doc"
+	arch=${arch_doc:-"noarch"}
 	local i
 	for i in doc man info html sgml licenses gtk-doc; do
 		if [ -d "$pkgdir/usr/share/$i" ]; then