diff --git a/lpst.pl b/lpst.pl
index 14292e6..f06f01f 100644
--- a/lpst.pl
+++ b/lpst.pl
@@ -218,7 +218,7 @@ sub disp_3(){
     return $HEX_3;
 }
 
-sub disp_x_axis($$$$){
+sub disp_y_axis($$$$){
     my ($s0, $s1, $s2, $r0) = @_;
     my $n0;
     
@@ -249,7 +249,7 @@ sub disp_0($){
 
     $r0 = shift;
 
-    ($s0, $s1, $s2) = disp_x_axis($s0, $s1, $s2, $r0);
+    ($s0, $s1, $s2) = disp_y_axis($s0, $s1, $s2, $r0);
     for my $i (1..11){
 	($s0, $s1, $s2) = add_cell($s0, $s1, $s2, $r0, $i);
     }
@@ -277,7 +277,7 @@ sub disp_row($){
     return $row;
 }
 
-sub disp_y_axis(){
+sub disp_x_axis(){
     my $s0;
     
     $s0 = $PAD_AXIS;
@@ -321,7 +321,7 @@ sub disp_board(){
 	$b .= disp_row($i);
     }
     $b .= disp_trailing_row();
-    $b .= disp_y_axis();
+    $b .= disp_x_axis();
     $b =~ s/$TRAIL_1$TRAIL_3\n/\n/m;
 
     for my $i (1..11-1){