diff --git a/contrib/sdl_checkpoints.pl b/contrib/sdl_checkpoints.pl
index ecbf38bc0..8b7ea54ea 100755
--- a/contrib/sdl_checkpoints.pl
+++ b/contrib/sdl_checkpoints.pl
@@ -8,11 +8,11 @@
 
 use warnings;
 use strict;
-my $hush    = "./src/dragonx-cli";
+my $hush    = "./src/hush-cli";
 my $gethash = "$hush getblockhash";
 my $gettree = "$hush getblockmerkletree";
-my $start   = shift || 10000;
-my $end     = shift || 1760000;
+my $start   = shift || 300000;
+my $end     = shift || 840000;
 my $stride  = shift || 10000;
 
 my $blocks  = qx{$hush getblockcount};