diff --git a/entrance_data/1623-2025-LB-00.html b/entrance_data/1623-2025-LB-00.html
index 14325511a..b726c8da3 100644
--- a/entrance_data/1623-2025-LB-00.html
+++ b/entrance_data/1623-2025-LB-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,