diff --git a/cave_data/1623-2025-HW-00.html b/cave_data/1623-2025-HW-00.html
index 8ac2230d8..845179d69 100644
--- a/cave_data/1623-2025-HW-00.html
+++ b/cave_data/1623-2025-HW-00.html
@@ -24,7 +24,10 @@ the form documented at
 <kataster_number></kataster_number> 
 <unofficial_number>2025-HW-00</unofficial_number>
 
-
+<entrance>
+  <entranceslug>1623-2025-HW-00</entranceslug>
+  <letter></letter>
+</entrance>
 
 <explorers></explorers>
 <survex_file></survex_file>
diff --git a/entrance_data/1623-2025-HW-00.html b/entrance_data/1623-2025-HW-00.html
index 1cc65b134..9cd986e51 100644
--- a/entrance_data/1623-2025-HW-00.html
+++ b/entrance_data/1623-2025-HW-00.html
@@ -37,7 +37,7 @@ though, you do not need to do a data import as it happens automatically -->
                       S? = Spit (?),
                       U  = Unmarked,
                       ?  = Unknown" -->
-<marking>?</marking> 
+<marking>U</marking> 
 <marking_comment></marking_comment>
 <!-- findability options: ? = To be confirmed ...,
                           S = Surveyed,