diff --git a/ChangeLog b/ChangeLog
index 2dfad04e4..f89f3d12e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,9 @@
 
 	* docs/formats.txt: Add link to PCF specification.
 
+	* include/freetype/ftbdf.h (FT_Get_BDF_Property): Improve
+	documentation.
+
 2009-01-09  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 
 	* src/base/ftadvanc.c (_ft_face_scale_advances, FT_Get_Advance,
diff --git a/include/freetype/ftbdf.h b/include/freetype/ftbdf.h
index a8cf6a514..4f8baf840 100644
--- a/include/freetype/ftbdf.h
+++ b/include/freetype/ftbdf.h
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    FreeType API for accessing BDF-specific strings (specification).     */
 /*                                                                         */
-/*  Copyright 2002, 2003, 2004, 2006 by                                    */
+/*  Copyright 2002, 2003, 2004, 2006, 2009 by                              */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -183,6 +183,14 @@ FT_BEGIN_HEADER
   *   otherwise.  It also returns an error if the property is not in the
   *   font.
   *
+  *   A `property' is a either key-value pair within the STARTPROPERTIES
+  *   ... ENDPROPERTIES block of a BDF font or a key-value pair from the
+  *   `info->props' array within a `FontRec' structure of a PCF font.
+  *
+  *   Integer properties are always stored as `signed' within PCF fonts;
+  *   consequently, @BDF_PROPERTY_TYPE_CARDINAL is a possible return value
+  *   for BDF fonts only.
+  *
   *   In case of error, `aproperty->type' is always set to
   *   @BDF_PROPERTY_TYPE_NONE.
   */