diff --git a/test/readline/test_readline.rb b/test/readline/test_readline.rb
index 28e6b310851fc6..280c6ddb44b42b 100644
--- a/test/readline/test_readline.rb
+++ b/test/readline/test_readline.rb
@@ -502,7 +502,6 @@ def test_interrupt_in_other_thread
             puts 'TRAP'
           }
           Readline.readline('input> ')
-          exit!(0) # Cause the process to exit immediately.
         }.value
       rescue Interrupt
         puts 'FAILED'