diff --git a/templates/shadow/INSTALL b/templates/shadow/INSTALL
index bb7b73077d2..c2f51d2dbea 100644
--- a/templates/shadow/INSTALL
+++ b/templates/shadow/INSTALL
@@ -36,6 +36,8 @@ usb:x:15:
 cdrom:x:16:
 mail:x:18:
 dialout:x:19:
+optical:x:93:
+storage:x:95:
 nogroup:x:99:
 users:x:1000:
 _EOF