diff --git a/IV/Makefile b/IV/Makefile
index c5a1a0e..1116a37 100644
--- a/IV/Makefile
+++ b/IV/Makefile
@@ -1,6 +1,6 @@
 SOURCE ?= lithuania-latest.osm.pbf
-#WHERE ?= name like '%%'
-WHERE ?= name='Visinčia' OR name='Šalčia' OR name='Nemunas' OR name='Žeimena' OR name='Lakaja'
+WHERE ?= name like '%'
+#WHERE ?= name='Visinčia' OR name='Šalčia' OR name='Nemunas' OR name='Žeimena' OR name='Lakaja'
 SLIDES = slides-2021-03-29.pdf
 
 NON_ARCHIVABLES = notes.txt referatui.txt slides-2021-03-29.txt
diff --git a/IV/aggregate-rivers.sql b/IV/aggregate-rivers.sql
index b9ecbe4..79c3a32 100644
--- a/IV/aggregate-rivers.sql
+++ b/IV/aggregate-rivers.sql
@@ -36,5 +36,5 @@ insert into aggregate_rivers_tmp
     where waterway in ('river', 'stream', 'canal') and :where;
 
 drop table if exists agg_rivers;
-create table agg_rivers as (select * from aggregate_rivers() where st_length(way) > 20000);
+create table agg_rivers as (select * from aggregate_rivers() where st_length(way) >= 50000);
 drop table aggregate_rivers_tmp;