diff --git a/.travis.yml b/.travis.yml
index 4339ac6..cb1a119 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,8 @@
 language: ruby
 rvm:
-  1.8.7
+  - rbx-1.3
+  - rbx-2
+  - 1.8.7
+  - 2.0.0
+  - 2.1.2
 script: rake compile:libxslt_ruby && rake test
diff --git a/ext/libxslt/extconf.rb b/ext/libxslt/extconf.rb
index 6cd38e5..af89db6 100755
--- a/ext/libxslt/extconf.rb
+++ b/ext/libxslt/extconf.rb
@@ -130,8 +130,12 @@ def crash(str)
          "#{gem_spec.full_gem_path}/lib/#{minor_version}",
          "#{gem_spec.full_gem_path}/ext/libxml"]
 
+is_osx = RbConfig::CONFIG['host_os'].match(/darwin/)
+is_rbx = defined?(RUBY_ENGINE) && (RUBY_ENGINE == "rbx")
+
 # No need to link xml_ruby on OS X
-unless RbConfig::CONFIG['host_os'].match(/darwin/)
+# Also do not link on rubinius
+unless (is_osx or is_rbx)
   # Hack to make sure ruby library is *after* xml_ruby library
   $LIBS = "#{$LIBRUBYARG_STATIC} #{$LIBS}"
 
diff --git a/libxslt-ruby.gemspec b/libxslt-ruby.gemspec
index e821967..87de130 100644
--- a/libxslt-ruby.gemspec
+++ b/libxslt-ruby.gemspec
@@ -1,4 +1,5 @@
 # encoding: utf-8
+require 'date'
 
 # Determine the current version of the software
 version = File.read('ext/libxslt/version.h').match(/\s*RUBY_LIBXSLT_VERSION\s*['"](\d.+)['"]/)[1]