diff --git a/common/hw-config.ads.template b/common/hw-config.ads.template
index 5a25ccb..a55b230 100644
--- a/common/hw-config.ads.template
+++ b/common/hw-config.ads.template
@@ -17,4 +17,6 @@
 
    Dynamic_MMIO : constant Boolean := <<DYNAMIC_MMIO>>;
 
+   Default_MMConf_Base : constant := <<DEFAULT_MMCONF_BASE>>;
+
 end HW.Config;