diff --git a/comps-f21.xml.in b/comps-f21.xml.in
index f6f85703..6b17edf8 100644
--- a/comps-f21.xml.in
+++ b/comps-f21.xml.in
@@ -100,6 +100,7 @@
       <packagereq>gnome-bluetooth</packagereq>
       <packagereq>gnome-boxes</packagereq>
       <packagereq>gnome-calculator</packagereq>
+      <packagereq>gnome-classic-session</packagereq>
       <packagereq>gnome-clocks</packagereq>
       <packagereq>gnome-color-manager</packagereq>
       <packagereq>gnome-contacts</packagereq>