diff --git a/ChangeLog b/ChangeLog
index 811bafe35..5a6c7a53e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-08-29  suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
+
+	* src/sfnt/sfobjs.c (sfnt_open_font): Use TTAG_OTTO defined in
+	ttags.h instead of FT_MAKE_TAG( 'O', 'T', 'T', 'O' ).
+
 2008-08-28  Werner Lemberg  <wl@gnu.org>
 
 	* src/type1/t1load.c (parse_encoding): Protect against infinite
diff --git a/src/sfnt/sfobjs.c b/src/sfnt/sfobjs.c
index c25b87d8d..d3d8a0252 100644
--- a/src/sfnt/sfobjs.c
+++ b/src/sfnt/sfobjs.c
@@ -365,7 +365,7 @@
 
     if ( tag != 0x00010000UL                      &&
          tag != TTAG_ttcf                         &&
-         tag != FT_MAKE_TAG( 'O', 'T', 'T', 'O' ) &&
+         tag != TTAG_OTTO                         &&
          tag != TTAG_true                         &&
          tag != 0x00020000UL                      )
       return SFNT_Err_Unknown_File_Format;