diff --git a/ChangeLog b/ChangeLog
index 2deff68ba5..a1526f246f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sat May 15 17:52:24  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
+
+	* test/ruby/test_float.rb(test_strtod): Add test for signed 0.000...1
+
 Sat May 15 14:20:13 2004  WATANABE Hirofumi  <eban@ruby-lang.org>
 
 	* ext/syck/depend: add ruby's headers.
diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb
index 2faf1b0456..92c2062948 100644
--- a/test/ruby/test_float.rb
+++ b/test/ruby/test_float.rb
@@ -63,6 +63,10 @@ class TestFloat < Test::Unit::TestCase
     assert(a.abs < Float::EPSILON)
     a = Float("0." + "00" * Float::DIG + "1")
     assert(a != 0.0)
+    a = Float("+0." + "00" * Float::DIG + "1")
+    assert(a != 0.0)
+    a = Float("-0." + "00" * Float::DIG + "1")
+    assert(a != 0.0)
     # add expected behaviour here.
   end
 end