diff --git a/lib/nova b/lib/nova
index de898b2..e928cf2 100644
--- a/lib/nova
+++ b/lib/nova
@@ -639,7 +639,7 @@
     if is_service_enabled n-cell; then
         cp $NOVA_CONF $NOVA_CELLS_CONF
         iniset $NOVA_CELLS_CONF database connection `database_connection_url $NOVA_CELLS_DB`
-        iniset $NOVA_CELLS_CONF oslo_messaging_rabbit rabbit_virtual_host child_cell
+        iniset_rpc_backend nova $NOVA_CELLS_CONF DEFAULT child_cell
         iniset $NOVA_CELLS_CONF DEFAULT dhcpbridge_flagfile $NOVA_CELLS_CONF
         iniset $NOVA_CELLS_CONF cells enable True
         iniset $NOVA_CELLS_CONF cells cell_type compute