diff --git a/etc/shells b/etc/shells
index 4cbeaf9fd..13c450a7f 100644
--- a/etc/shells
+++ b/etc/shells
@@ -4,6 +4,7 @@
 # Ftpd will not allow users to connect who are not using
 # one of these shells.
 
+/bin/false
 /bin/sh
 /bin/csh
 /bin/ksh