diff --git a/cave_data/1623-2023-ASH-08.html b/cave_data/1623-2023-ASH-08.html
index 5114f5ba2..496aae785 100644
--- a/cave_data/1623-2023-ASH-08.html
+++ b/cave_data/1623-2023-ASH-08.html
@@ -44,7 +44,7 @@ code used in the Austrian kataster e.g '1/S +' - https://expo/.survex.com/katast
 </entrance>
 
 <entrance>
-  <entranceslug>1623-2023-ASH-08z</entranceslug><!-- Internal ID to refer to each entrance instance in the entrance files (typically the same as that filename (e.g. 1623-161c). Matches the 'slug' field in the entrance file -->
+  <entranceslug>1623-2023-ASH-08b</entranceslug><!-- Internal ID to refer to each entrance instance in the entrance files (typically the same as that filename (e.g. 1623-161c). Matches the 'slug' field in the entrance file -->
   <letter>z</letter><!--Leave blank for single-entrance cave. If there is more than one entrace then the letter needs to be given. Generally matches the entranceslug ID.  -->
 </entrance>
 
diff --git a/cave_data/1623-2023-KT-01.html b/cave_data/1623-2023-KT-01.html
index 1a4985dae..dbb168550 100644
--- a/cave_data/1623-2023-KT-01.html
+++ b/cave_data/1623-2023-KT-01.html
@@ -39,8 +39,8 @@ code used in the Austrian kataster e.g '1/S +' - https://expo/.survex.com/katast
 <unofficial_number>2023-KT-01</unofficial_number><!-- (Either this or kataster_number is required). Initial temporary cave ID used until kataster number is allocated e.g. '2012-DD-01'-->
 
 <entrance>
-  <entranceslug>1623-2023-KT-01a</entranceslug><!-- Internal ID to refer to each entrance instance in the entrance files (typically the same as that filename (e.g. 1623-161c). Matches the 'slug' field in the entrance file -->
-  <letter>A</letter><!--Leave blank for single-entrance cave. If there is more than one entrace then the letter needs to be given. Generally matches the entranceslug ID.  -->
+  <entranceslug>1623-2023-KT-01</entranceslug><!-- Internal ID to refer to each entrance instance in the entrance files (typically the same as that filename (e.g. 1623-161c). Matches the 'slug' field in the entrance file -->
+  <letter></letter><!--Leave blank for single-entrance cave. If there is more than one entrace then the letter needs to be given. Generally matches the entranceslug ID.  -->
 </entrance>
 
 <explorers>Kai, Nadia, Flo, Max</explorers><!-- 'CUCC Expo' and year(s) of exploration. To distinguish from caves explored by foreign groups. Individual names can be given too if it was a small cave. -->
diff --git a/entrance_data/1623-2023-KT-01a.html b/entrance_data/1623-2023-KT-01.html
similarity index 96%
rename from entrance_data/1623-2023-KT-01a.html
rename to entrance_data/1623-2023-KT-01.html
index 49eadeffd..4d503181b 100644
--- a/entrance_data/1623-2023-KT-01a.html
+++ b/entrance_data/1623-2023-KT-01.html
@@ -19,7 +19,7 @@ though, you do not need to do a data import as it happens automatically -->
 <br>
 <entrance>
 <non_public>False</non_public>
-<slug>1623-2023-KT-01A</slug> <!-- one entrance and one slug per entrance_data file -->
+<slug>1623-2023-KT-01</slug> <!-- one entrance and one slug per entrance_data file -->
 <name></name>
 <entrance_description>The entrance has a steady slope before it drops vertacly. This can be walked down before a rope is needed.</entrance_description>
 <explorers>Kai, Max, Flo, Nadia</explorers>