diff --git a/test/readline/test_readline.rb b/test/readline/test_readline.rb
index 1f491c5954..59408c2b11 100644
--- a/test/readline/test_readline.rb
+++ b/test/readline/test_readline.rb
@@ -808,6 +808,7 @@ class TestRelineAsReadline < Test::Unit::TestCase
 
   def teardown
     finish_using_lib_reline
+    super
   end
 
   def get_default_internal_encoding
diff --git a/test/readline/test_readline_history.rb b/test/readline/test_readline_history.rb
index cbb59018d5..39ad4fe85a 100644
--- a/test/readline/test_readline_history.rb
+++ b/test/readline/test_readline_history.rb
@@ -279,6 +279,7 @@ class TestRelineAsReadlineHistory < Test::Unit::TestCase
 
   def teardown
     finish_using_lib_reline
+    super
   end
 
   def get_default_internal_encoding