diff --git a/cave_data/1623-rentner.html b/cave_data/1623-rentner.html
index 215f1cf92..98b061aa3 100644
--- a/cave_data/1623-rentner.html
+++ b/cave_data/1623-rentner.html
@@ -6,9 +6,7 @@ make sure you update the database by doing a full data import. If you edit it us
though, you do not need to do a data import as it happens automatically -->
<!-- ALTERNATIVELY you can download an example template from expoweb/templates/cave_data.html -->
<html lang="en">
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
-</head>
+<head><title>Rentner Express</title></head>
<body>
<b>This file is generated by troggle</b> on Nov. 2, 2023, 8:15 p.m. UTC using the form documented at
the form documented at
@@ -17,9 +15,8 @@ the form documented at
<cave>
<non_public>False</non_public><!-- 'False' or 'True'. True if the cave should only be visible to logged-in users. Caves are normally public, so enter 'False' unless you know otherwise. -->
-<caveslug>1623-rentner</caveslug><!--(Ignored). Internal I.D. used to refer to this cave in entrance data files. Typically the same as the filebase, e.g. '1623-195' -->
+
<official_name>Rentner-Express</official_name><!-- Name of the cave (normally in German) Use ü for u+Umlaut and ö for o+umlaut eg Höhle for Hohle and Glück for Gluck-->
-<area>1623</area><!-- e.g. "1623" -->
<kataster_code></kataster_code><!-- 'length-or-depth/type exploration'
code used in the Austrian kataster e.g '1/S +' - https://expo/.survex.com/katast.htm
@@ -73,6 +70,5 @@ schwingerclub
<description_file></description_file><!-- Path of top-level description file for this cave, when a separate file is used. Otherwise blank. -->
<url>1623/rentner/rentner.html</url><!-- (Required). Relative URL of this cave. i.e the URL this cave appears at on the website, not including 'https://expo.survex.com/. Normally area/cavenum., e.g ('1623/000')-->
-</cave>
-</body>
+</cave></body>
</html>