diff --git a/README.md b/README.md
index 9a699ae5..70371c4f 100644
--- a/README.md
+++ b/README.md
@@ -421,6 +421,14 @@ Finit is configured with this option, Finit will try to start a bare
 `/bin/sh` on the boot console.  Remember, this is only for debugging
 and would leave your production system potentially wide open.
 
+There is also a rescue shell available, in case Finit crashes and the
+kernel usually reboots: `configure --enable-emergency-shell`.  However,
+the behavior of Finit is severely limited when this is enabled, so use
+it only for debugging start up issues when Finit crashes.
+
+**NOTE:** Both of these configure options *should not* be enabled for
+production systems since they can potentially give a user root access.
+
 
 Origin & References
 -------------------