diff --git a/test/fiber/test_scheduler.rb b/test/fiber/test_scheduler.rb
index f3ea6e8ab6..52f10846ac 100644
--- a/test/fiber/test_scheduler.rb
+++ b/test/fiber/test_scheduler.rb
@@ -24,6 +24,6 @@ class TestFiberScheduler < Test::Unit::TestCase
     thread.join
 
     assert_not_empty scheduler.blocking
-    assert_match(/test_fiber\.rb:\d+:in `close'/, scheduler.blocking.last)
+    assert_match(/test_scheduler\.rb:\d+:in `close'/, scheduler.blocking.last)
   end
 end