diff --git a/debian/README b/debian/README
index db3125849..de7d78b49 100644
--- a/debian/README
+++ b/debian/README
@@ -199,3 +199,7 @@ default_config
   * If it is not defined and config.default exists, use that.
   * If neither default_config is defined not config.default exists, pick
     the first flavour from the flavour list and use its config.
+
+  Typical usage:
+
+  default_config := 386