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Diffstat (limited to 'lib/rubygems/package/old.rb')
| -rw-r--r-- | lib/rubygems/package/old.rb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/rubygems/package/old.rb b/lib/rubygems/package/old.rb index d74753fa90..31c4111d33 100644 --- a/lib/rubygems/package/old.rb +++ b/lib/rubygems/package/old.rb @@ -145,7 +145,7 @@ class Gem::Package::Old < Gem::Package yaml_error = if RUBY_VERSION < '1.9' then YAML::ParseError - elsif YAML::ENGINE.yamler == 'syck' then + elsif YAML.const_defined?(:ENGINE) && YAML::ENGINE.yamler == 'syck' then YAML::ParseError else YAML::SyntaxError |