diff --git a/ChangeLog b/ChangeLog
index d8a4917b9..131d9e45e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2002-01-27  Giuliano Pochini  <pochini@shiny.it>
+
+	* src/smooth/ftgrays.c (gray_render_scanline): Fix bug which caused
+	bad rendering of thin lines (less than one pixel thick).
+
 2002-01-25  Werner Lemberg  <wl@gnu.org>
 
 	* src/cff/cffdrivr.c (cff_get_name_index): Make last patch work
diff --git a/src/smooth/ftgrays.c b/src/smooth/ftgrays.c
index 55da7c340..e6d361b81 100644
--- a/src/smooth/ftgrays.c
+++ b/src/smooth/ftgrays.c
@@ -553,7 +553,7 @@
 
     if ( ex1 != ex2 )
     {
-      p     = ONE_PIXEL * ( y2 - y1 );
+      p     = ONE_PIXEL * ( y2 - y1 + delta );
       lift  = p / dx;
       rem   = p % dx;
       if ( rem < 0 )