diff --git a/pangomm.spec b/pangomm.spec
index 98de9a8..50988bf 100644
--- a/pangomm.spec
+++ b/pangomm.spec
@@ -27,6 +27,7 @@ License:        GPL-2.0+ and LGPL-2.0+
 Group:          Development/Libraries/C and C++
 Url:            http://www.gtkmm.org
 Source:         http://download.gnome.org/sources/pangomm/2.35/%{name}-%{version}.tar.xz
+Source99:       baselibs.conf
 BuildRequires:  fdupes
 BuildRequires:  gcc-c++
 BuildRequires:  pkgconfig(cairomm-1.0) >= 1.2.2