diff --git a/db/routines/vn/procedures/clean.sql b/db/routines/vn/procedures/clean.sql
index ed1569935..36ef85834 100644
--- a/db/routines/vn/procedures/clean.sql
+++ b/db/routines/vn/procedures/clean.sql
@@ -131,7 +131,8 @@ BEGIN
 
 	DELETE e
 		FROM entry e
-			JOIN tEntryToDelete tmp ON tmp.id = e.id;
+			JOIN tEntryToDelete tmp ON tmp.id = e.id
+		WHERE NOT e.isBooked;
 
 	-- borrar de route registros menores a 4 años
 	CREATE OR REPLACE TEMPORARY TABLE tRouteToDelete