diff --git a/ChangeLog b/ChangeLog
index 7d5a731b59..b66483f7c1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Apr 21 15:56:43 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* lib/test/unit/ui/console/testrunner.rb (test_started): restore $0
+	  after changing process title.  [ruby-talk:97426]
+
 Wed Apr 21 11:45:22  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
 	* process.c: Recover wrongly removed spaces at end of the lines.
diff --git a/lib/test/unit/ui/console/testrunner.rb b/lib/test/unit/ui/console/testrunner.rb
index 5f38776403..1cb4ff0b82 100644
--- a/lib/test/unit/ui/console/testrunner.rb
+++ b/lib/test/unit/ui/console/testrunner.rb
@@ -90,7 +90,8 @@ module Test
           end
           
           def test_started(name)
-            $0 = $0.sub(/(?:\0.*)?\z/) {"\0"+name}
+            $0 += "\0#{name}"
+            $0.sub!(/\0.*\z/, '')
             output_single(name + ": ", VERBOSE)
           end