diff --git a/test/ruby/test_gc.rb b/test/ruby/test_gc.rb
index 5dea1b2742..d59bdfd50e 100644
--- a/test/ruby/test_gc.rb
+++ b/test/ruby/test_gc.rb
@@ -385,6 +385,7 @@ class TestGc < Test::Unit::TestCase
   end
 
   def test_gc_stress_at_startup
+    skip
     assert_in_out_err([{"RUBY_DEBUG"=>"gc_stress"}], '', [], [], '[Bug #15784]', success: true)
   end