diff --git a/libmodulemd.spec b/libmodulemd.spec
index ffa516b..3f08755 100644
--- a/libmodulemd.spec
+++ b/libmodulemd.spec
@@ -24,6 +24,7 @@ BuildRequires:  pkgconfig(gobject-2.0)
 BuildRequires:  pkgconfig(gobject-introspection-1.0)
 BuildRequires:  pkgconfig(yaml-0.1)
 BuildRequires:  pkgconfig(gtk-doc)
+BuildRequires:  glib2-doc
 %if %{build_python2}
 BuildRequires:  python2-devel
 BuildRequires:  python-gobject-base