diff -Nur a/PSUtils.pm b/PSUtils.pm
--- a/PSUtils.pm	2024-04-07 16:45:42.263733801 +0800
+++ b/PSUtils.pm	2024-04-07 16:46:22.289733801 +0800
@@ -60,7 +60,7 @@
 # Get the size of the given paper, or the default paper if no argument given.
 sub paper {
   my ($cmd, $silent) = @_;
-  unshift @{$cmd}, "paper";
+  unshift @{$cmd}, "paperconf";
   my $out;
   run3 $cmd, undef, \$out, $silent ? \undef : undef, {return_if_system_error=>1};
   Die("could not run `paper' command") if $? == -1;
