diff --git a/test/rubygems/test_gem_package.rb b/test/rubygems/test_gem_package.rb
index 29e2ce86b1..54ba245b32 100644
--- a/test/rubygems/test_gem_package.rb
+++ b/test/rubygems/test_gem_package.rb
@@ -608,7 +608,7 @@ class TestGemPackage < Gem::Package::TarTestCase
bogus_data = Gem.gzip 'hello'
fake_signer = Class.new do
def digest_name; 'SHA512'; end
- def digest_algorithm; Digest(:SHA512); end
+ def digest_algorithm; OpenSSL::Digest::SHA512; end
def key; 'key'; end
def sign(*); 'fake_sig'; end
end
--
2.17.1