diff --git a/ChangeLog b/ChangeLog
index 1657881b26..02b3d3047d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Nov  5 16:05:32 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+
+	* ext/tk/lib/tk.rb: TkComm._at() supprts both of "@x,y" and "@x"
+
 Fri Nov  5 13:22:58 2004  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
 
 	* ext/tk/lib/tk/text.rb: sorry. bug fix again.
diff --git a/ext/tk/lib/tk.rb b/ext/tk/lib/tk.rb
index 404f8bf9f8..807ccd2285 100644
--- a/ext/tk/lib/tk.rb
+++ b/ext/tk/lib/tk.rb
@@ -179,8 +179,12 @@ module TkComm
   private :_genobj_for_tkwidget
   module_function :_genobj_for_tkwidget
 
-  def _at(x,y)
-    "@#{Integer(x)},#{Integer(y)}"
+  def _at(x,y=nil)
+    if y
+      "@#{Integer(x)},#{Integer(y)}"
+    else
+      "@#{Integer(x)}"
+    end
   end
   module_function :_at