diff --git a/ChangeLog b/ChangeLog
index 56dcf45cc3..9959753509 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Dec 24 23:27:18 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+
+	* ext/tk/lib/tk/image.rb: TkPhotoImage#cget bug fix
+
 Fri Dec 24 03:06:13 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* io.c (io_reopen, rb_io_reopen): prohibit to change access mode for
diff --git a/ext/tk/lib/tk/image.rb b/ext/tk/lib/tk/image.rb
index 6eb7b98d6c..0848eb5966 100644
--- a/ext/tk/lib/tk/image.rb
+++ b/ext/tk/lib/tk/image.rb
@@ -89,9 +89,9 @@ class TkPhotoImage<TkImage
   def cget(option)
     case option.to_s
     when 'data', 'file'
-      tk_send 'cget', option
+      tk_send 'cget', '-' << option.to_s
     else
-      tk_tcl2ruby(tk_send('cget', option))
+      tk_tcl2ruby(tk_send('cget', '-' << option.to_s))
     end
   end