diff --git a/test/rubygems/test_gem_commands_signout_command.rb b/test/rubygems/test_gem_commands_signout_command.rb
index 2674351fd3..2bb782e6f0 100644
--- a/test/rubygems/test_gem_commands_signout_command.rb
+++ b/test/rubygems/test_gem_commands_signout_command.rb
@@ -8,9 +8,15 @@ class TestGemCommandsSignoutCommand < Gem::TestCase
 
   def setup
     super
+
     @cmd = Gem::Commands::SignoutCommand.new
   end
 
+  def teardown
+    super
+    File.delete Gem.configuration.credentials_path if File.exist?(Gem.configuration.credentials_path)
+  end
+
   def test_execute_when_user_is_signed_in
     FileUtils.mkdir_p File.dirname(Gem.configuration.credentials_path)
     FileUtils::touch Gem.configuration.credentials_path