diff --git a/ChangeLog b/ChangeLog
index de54f561e1..b409f35fc6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sat Jun  5 15:15:52 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/envutil.rb (EnvUtil#invoke_ruby): support for child
+	  process env.
+
 Sat Jun  5 14:11:11 2010  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* test/net/imap/test_imap.rb (test_exception_during_shutdown):
diff --git a/test/ruby/envutil.rb b/test/ruby/envutil.rb
index c5215e4bdd..8f792d249f 100644
--- a/test/ruby/envutil.rb
+++ b/test/ruby/envutil.rb
@@ -75,7 +75,11 @@ module EnvUtil
       opt[:in] = in_c
       opt[:out] = out_c if capture_stdout
       opt[:err] = err_c if capture_stderr
-      pid = spawn(EnvUtil.rubybin, *args, opt)
+      case args.first
+      when Hash
+        child_env = [args.shift]
+      end
+      pid = spawn(*child_env, EnvUtil.rubybin, *args, opt)
       in_c.close
       out_c.close if capture_stdout
       err_c.close if capture_stderr