diff --git a/test/openssl/test_config.rb b/test/openssl/test_config.rb
index 604ccaa639..88bb5af7be 100644
--- a/test/openssl/test_config.rb
+++ b/test/openssl/test_config.rb
@@ -21,11 +21,11 @@ __EOD__
   end
 
   def test_constants
-    skip "DEFAULT_CONFIG_FILE may return a wrong path on your platforms. [Bug #6830]" if /mswin|mingw|darwin/ =~ RUBY_PLATFORM
-
     assert(defined?(OpenSSL::Config::DEFAULT_CONFIG_FILE))
+    config_file = OpenSSL::Config::DEFAULT_CONFIG_FILE
+    skip "DEFAULT_CONFIG_FILE may return a wrong path on your platforms. [Bug #6830]" unless File.readable?(config_file)
     assert_nothing_raised do
-      OpenSSL::Config.load(OpenSSL::Config::DEFAULT_CONFIG_FILE)
+      OpenSSL::Config.load(config_file)
     end
   end