diff --git a/bootstraptest/test_io.rb b/bootstraptest/test_io.rb
index 24a5b3c680..d2e02a0659 100644
--- a/bootstraptest/test_io.rb
+++ b/bootstraptest/test_io.rb
@@ -78,7 +78,7 @@ assert_normal_exit %q{
   ARGF.set_encoding "foo"
 }
 
-50.times do
+1.times do
   assert_normal_exit %q{
     at_exit { p :foo }