diff --git a/gnome-base/gnome-control-center/gnome-control-center-3.8.0-r1.ebuild b/gnome-base/gnome-control-center/gnome-control-center-3.8.0-r1.ebuild
index 3b1835f..5c8df51 100644
--- a/gnome-base/gnome-control-center/gnome-control-center-3.8.0-r1.ebuild
+++ b/gnome-base/gnome-control-center/gnome-control-center-3.8.0-r1.ebuild
@@ -115,6 +115,8 @@ src_prepare() {
 	# Fix some absolute paths to be appropriate for Gentoo
 	epatch "${FILESDIR}/${PN}-3.8.0-paths-makefiles.patch"
 	epatch "${FILESDIR}/${PN}-3.8.0-paths.patch"
+	sed -i 's|^completiondir =.*|completiondir = $(datadir)/bash-completion|' \
+		shell/Makefile.am || die "sed completiondir failed"
 
 	eautoreconf
 	gnome2_src_prepare