diff --git a/cave_data/1623-2025-LB-00.html b/cave_data/1623-2025-LB-00.html
index 7a15efe20..20b153089 100644
--- a/cave_data/1623-2025-LB-00.html
+++ b/cave_data/1623-2025-LB-00.html
@@ -23,7 +23,7 @@ the form documented at
 <area>1623</area>
 <kataster_code></kataster_code>
 <kataster_number></kataster_number> 
-<unofficial_number>2025-LB-00</unofficial_number>
+<unofficial_number>2025-LB-01</unofficial_number>
 
 <entrance>
   <entranceslug>1623-2025-LB-00</entranceslug>