Rakefile in twitter-text-1.3.1 vs Rakefile in twitter-text-1.3.2

@@ -37,10 +37,10 @@
       end
     end
 
     desc "Run conformance test suite"
     task :run do
-      ruby "test/conformance_test.rb"
+      ruby '-rubygems', "test/conformance_test.rb"
     end
   end
 
   desc "Run conformance test suite"
   task :conformance => ['conformance:latest', 'conformance:run'] do