diff --git a/gsrest/db/cassandra.py b/gsrest/db/cassandra.py
index 8bf45f70..ae8a2c08 100644
--- a/gsrest/db/cassandra.py
+++ b/gsrest/db/cassandra.py
@@ -175,7 +175,8 @@ def merge_address_txs_subquery_results(
         if border_tx_id is None:
             border_tx_id = results[-1][tx_id_keys]
             continue
-        border_tx_id = min(border_tx_id, results[-1][tx_id_keys])
+        order = min if ascending else max
+        border_tx_id = order(border_tx_id, results[-1][tx_id_keys])
 
     # cut result_sets so that we only have the overlapping rows below/above
     # the border_tx_id