diff --git a/test/irb/test_raise_no_backtrace_exception.rb b/test/irb/test_raise_no_backtrace_exception.rb
index 9d000d5d4e..72e82bf7f7 100644
--- a/test/irb/test_raise_no_backtrace_exception.rb
+++ b/test/irb/test_raise_no_backtrace_exception.rb
@@ -4,7 +4,7 @@ require 'test/unit'
 module TestIRB
   class TestRaiseNoBacktraceException < Test::Unit::TestCase
     def test_raise_exception
-      status = assert_in_out_err(%w[-rirb -W1 -e IRB.start(__FILE__) -- -f --], <<-IRB, /Exception: foo/, [])
+      assert_in_out_err(%w[-rirb -W1 -e IRB.start(__FILE__) -- -f --], <<-IRB, /Exception: foo/, [], success: true)
       e = Exception.new("foo")
       def e.backtrace; nil; end
       raise e