diff --git a/ChangeLog b/ChangeLog
index 814f7b4bdb..7730847c8e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sat Dec 22 19:52:23 2007  Koichi Sasada  <ko1@atdot.net>
+
+	* bootstraptest/test_objectspace.rb: fix condition.
+
 Sat Dec 22 19:17:10 2007  Koichi Sasada  <ko1@atdot.net>
 
 	* ext/probeprofiler/: removed.
diff --git a/bootstraptest/test_objectspace.rb b/bootstraptest/test_objectspace.rb
index ca738f5d63..1a43d42017 100644
--- a/bootstraptest/test_objectspace.rb
+++ b/bootstraptest/test_objectspace.rb
@@ -17,7 +17,7 @@ assert_normal_exit %q{
   ary.permutation(2) {|x|
     if x == [1,2]
       ObjectSpace.each_object(String) {|s|
-        s.clear if s.frozen? && (s.length == 40 || s.length == 80)
+        s.clear if !s.frozen? && (s.length == 40 || s.length == 80)
       }
     end
   }