Gemfile in instrumental_agent-1.0.1 vs Gemfile in instrumental_agent-2.0.0.alpha

@@ -4,5 +4,8 @@
 ruby_engine = defined?(RUBY_ENGINE) && RUBY_ENGINE
 if RUBY_VERSION < "1.9" && !%w{jruby rbx}.include?(ruby_engine)
   # Built and installed via ext/mkrf_conf.rb
   gem 'system_timer', '~> 1.2'
 end
+
+# fixes 2.3.0 ffi bundle error
+gem 'ffi', '~> 1.0.11'
\ No newline at end of file