diff --git a/test/openssl/test_random.rb b/test/openssl/test_random.rb
index e0c19cd358..ca8427f751 100644
--- a/test/openssl/test_random.rb
+++ b/test/openssl/test_random.rb
@@ -11,4 +11,4 @@ class OpenSSL::TestRandom < OpenSSL::TestCase
     assert_equal("", OpenSSL::Random.pseudo_bytes(0))
     assert_equal(12, OpenSSL::Random.pseudo_bytes(12).bytesize)
   end
-end if defined?(OpenSSL::Random)
+end if defined?(OpenSSL::TestCase)