1 files changed, 1 insertions, 1 deletions
diff --git a/test/io.rb b/test/io.rb
index 02507a9d4..de6c52d07 100644
--- a/test/io.rb
+++ b/test/io.rb
@@ -59,7 +59,7 @@ assert('IO.sysopen("/nonexistent")') do
   end
   assert_raise eclass do
     fd = IO.sysopen "/nonexistent"
-    IO.close fd
+    IO._sysclose fd
   end
 end