diff --git a/lib/Simba/CA.pm b/lib/Simba/CA.pm
index 428bc16..8459dfc 100644
--- a/lib/Simba/CA.pm
+++ b/lib/Simba/CA.pm
@@ -113,7 +113,11 @@ sub new {
     $self->{instances_part_size} = 10_000_000;
     $self->adjust_partitions;
 
-    $self->{targets} = $self->{dbh}->selectall_arrayref("select * from filesets", { Slice => {} });
+    # Order by ascending sort order with nulls last:
+    # MySQL considers NULL to be smaller than any number, so negate the numbers
+    # (making the largest the smallest) and then sort descending.
+    # Idea from https://www.designcise.com/web/tutorial/how-to-order-null-values-first-or-last-in-mysql
+    $self->{targets} = $self->{dbh}->selectall_arrayref("select * from filesets order by -sortorder desc", { Slice => {} });
     if ($opt->{filesets}) {
         $self->{targets} =
             [