diff --git a/tool/test-bundled-gems.rb b/tool/test-bundled-gems.rb
index a71d7dce7e..b4571229ae 100644
--- a/tool/test-bundled-gems.rb
+++ b/tool/test-bundled-gems.rb
@@ -10,7 +10,7 @@ github_actions = ENV["GITHUB_ACTIONS"] == "true"
 
 allowed_failures = ENV['TEST_BUNDLED_GEMS_ALLOW_FAILURES'] || ''
 if RUBY_PLATFORM =~ /mswin|mingw/
-  allowed_failures = [allowed_failures, "rbs,debug,irb"].join(',')
+  allowed_failures = [allowed_failures, "win32ole,rbs,debug,irb"].join(',')
 end
 allowed_failures = allowed_failures.split(',').uniq.reject(&:empty?)