diff --git a/test/reline/test_config.rb b/test/reline/test_config.rb
index 6da639ca8d..1e65c885d0 100644
--- a/test/reline/test_config.rb
+++ b/test/reline/test_config.rb
@@ -17,6 +17,7 @@ class Reline::Config::Test < Reline::TestCase
   def teardown
     Dir.chdir(@pwd)
     FileUtils.rm_rf(@tmpdir)
+    @config.reset
   end
 
   def test_read_lines