diff --git a/ChangeLog b/ChangeLog
index 74b38e2a46..b073750d77 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Thu Jan 23 20:20:17 2014  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/envutil.rb: try to wait a bit (0.1sec) when ruby process
+	  exits by signals because some SEGV tests fail because of not enough
+	  error output.
+
 Thu Jan 23 20:06:27 2014  Koichi Sasada  <ko1@atdot.net>
 
 	* test/ruby/test_settracefunc.rb: check the target thread.
diff --git a/test/ruby/envutil.rb b/test/ruby/envutil.rb
index 65b68df248..2e9ebbbca2 100644
--- a/test/ruby/envutil.rb
+++ b/test/ruby/envutil.rb
@@ -282,6 +282,7 @@ module Test
       def assert_in_out_err(args, test_stdin = "", test_stdout = [], test_stderr = [], message = nil, **opt)
         stdout, stderr, status = EnvUtil.invoke_ruby(args, test_stdin, true, true, **opt)
         if signo = status.termsig
+          sleep 0.1
           EnvUtil.diagnostic_reports(Signal.signame(signo), EnvUtil.rubybin, status.pid, Time.now)
         end
         if block_given?