diff --git a/test/fiber/test_thread.rb b/test/fiber/test_thread.rb
index 7221f767ac..843604b5f1 100644
--- a/test/fiber/test_thread.rb
+++ b/test/fiber/test_thread.rb
@@ -52,7 +52,9 @@ class TestFiberThread < Test::Unit::TestCase
       Fiber.set_scheduler scheduler
 
       Fiber.schedule do
-        Thread.new{}.join
+        Thread.new{
+          Thread.current.report_on_exception = false
+        }.join
       end
 
       scheduler.run