--- /dev/null
+--- a/muttprint 2016-05-05 13:48:50.515950744 +1200
++++ b/muttprint 2016-05-05 13:52:10.722623902 +1200
+@@ -643,14 +643,14 @@
+ if ($Config{PAPERSAVE} eq "on") {
+ if ($useCups) {
+ $Config{PRINT_COMMAND} =~
+- s/\$CUPS_OPTIONS/ -o sides=two-sided-long-edge \$CUPS_OPTIONS/;
++ s/\$CUPS_OPTIONS/ -o sides=two-sided-short-edge \$CUPS_OPTIONS/;
+ } else { # no cups
+ modifyPS("landscape");
+ }
+ } else { # no papersave
+ if ($useCups) {
+ $Config{PRINT_COMMAND} =~
+- s/\$CUPS_OPTIONS/ -o sides=two-sided-short-edge \$CUPS_OPTIONS/;
++ s/\$CUPS_OPTIONS/ -o sides=two-sided-long-edge \$CUPS_OPTIONS/;
+ } else { # no cups
+ modifyPS("portrait");
+ }