diff --git a/ChangeLog b/ChangeLog
index 05906accd8..2e6991e6f1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Apr 25 02:47:46 2011  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* ext/date/lib/date/format.rb: fixed a bug of regex.
+
 Mon Apr 25 02:12:26 2011  Tadayoshi Funaba  <tadf@dotrb.org>
 
 	* ext/date/lib/date/format.rb: an adjustment of regex.
diff --git a/ext/date/lib/date/format.rb b/ext/date/lib/date/format.rb
index d2dec22f02..a541131fb5 100644
--- a/ext/date/lib/date/format.rb
+++ b/ext/date/lib/date/format.rb
@@ -206,7 +206,8 @@ class Date
       end
       e
     elsif /\A\s*(?:([-+]?(?:\d{4}|\d{2})|--)(\d{2})(\d{2})|
-		   ([-+]?(?:\d{4}|\d{2}))?(\d{3)}|-(\d{3})|
+		   ([-+]?(?:\d{4}|\d{2}))?(\d{3})|
+		   -(\d{3})|
 		   (\d{4}|\d{2})?w(\d{2})(\d))
 	(?:t?
 	(\d{2})(\d{2})(?:(\d{2})(?:[,.](\d+))?)?