diff --git a/conf/intel/portage/package.unmask b/conf/intel/portage/package.unmask
index d0e508e..8a9e542 100644
--- a/conf/intel/portage/package.unmask
+++ b/conf/intel/portage/package.unmask
@@ -115,3 +115,6 @@ net-fs/openafs
 =dev-libs/libgweather-9999
 media-gfx/gimp
 >=gnome-extra/gnome-user-share-3.0.0
+
+# GNOME 3.1.x pre-releases for libraries in the tree
+>=dev-libs/gobject-introspection-9999