diff --git a/lib/logstash/kibana.rb b/lib/logstash/kibana.rb
index cd3286ede..db3f678ef 100644
--- a/lib/logstash/kibana.rb
+++ b/lib/logstash/kibana.rb
@@ -2,7 +2,7 @@ require "rack/handler/ftw" # gem ftw
 require "ftw" # gem ftw
 require "sinatra/base" # gem sinatra
 require "optparse"
-require "mime/type"
+require "mime/types"
 
 class Rack::Handler::FTW
   alias_method :handle_connection_, :handle_connection
diff --git a/lib/logstash/web/controllers/static_files.rb b/lib/logstash/web/controllers/static_files.rb
index c6034cf6a..939df08c6 100644
--- a/lib/logstash/web/controllers/static_files.rb
+++ b/lib/logstash/web/controllers/static_files.rb
@@ -1,5 +1,5 @@
 require "sinatra/base"
-require "mime/type"
+require "mime/types"
 
 class LogStash::Web::Server < Sinatra::Base
   get '/js/*' do static_file end