diff --git a/ruby-testing/src/rb/testing/patch/testunit/minitest/rm_reporter_plugin.rb b/ruby-testing/src/rb/testing/patch/testunit/minitest/rm_reporter_plugin.rb
index 63ff9846088..b5cb3fb9ed6 100644
--- a/ruby-testing/src/rb/testing/patch/testunit/minitest/rm_reporter_plugin.rb
+++ b/ruby-testing/src/rb/testing/patch/testunit/minitest/rm_reporter_plugin.rb
@@ -4,10 +4,10 @@
   require 'teamcity/utils/runner_utils'
   require 'teamcity/utils/url_formatter'
 rescue LoadError
-  MiniTest::Unit.runner.output.puts("====================================================================================================\n")
-  MiniTest::Unit.runner.output.puts("RubyMine reporter works only if it test was launched using RubyMine IDE or TeamCity CI server !!!\n")
-  MiniTest::Unit.runner.output.puts("====================================================================================================\n")
-  MiniTest::Unit.runner.output.puts("Using default results reporter...\n")
+  $stderr.puts("====================================================================================================\n")
+  $stderr.puts("RubyMine reporter works only if it test was launched using RubyMine IDE or TeamCity CI server !!!\n")
+  $stderr.puts("====================================================================================================\n")
+  $stderr.puts("Using default results reporter...\n")
 else
 
   module Minitest