diff -upr mlterm-3.0.1.org/xwindow/x_draw_str.c mlterm-3.0.1.underline/xwindow/x_draw_str.c
--- mlterm-3.0.1.org/xwindow/x_draw_str.c	2010-06-07 22:49:44.000000000 +0900
+++ mlterm-3.0.1.underline/xwindow/x_draw_str.c	2010-10-07 21:04:26.000000000 +0900
@@ -392,11 +392,12 @@ xft_draw_str(
 				}
 				else
 				{
+					const u_int line_height = ((height_to_baseline - bottom_margin)>>4) +1;
 					x_window_fill_with( window ,
 						x_get_xcolor( color_man , fg_color) ,
-						x , y + height_to_baseline ,
+						x , y + height - line_height,
 						current_width - x ,
-						((height_to_baseline - bottom_margin)>>4) +1 ) ;
+						line_height ) ;
 				}
 			}
 
@@ -913,11 +914,12 @@ xcore_draw_str(
 				}
 				else
 				{
+					const u_int line_height = ((height_to_baseline - bottom_margin)>>4) +1;
 					x_window_fill_with( window ,
 						x_get_xcolor( color_man , fg_color) ,
-						x , y + height_to_baseline ,
+						x , y + height - line_height,
 						current_width - x ,
-						((height_to_baseline - bottom_margin)>>4) +1 ) ;
+						line_height ) ;
 				}
 			}