diff --git a/app/controllers/tuttle/ruby_controller.rb b/app/controllers/tuttle/ruby_controller.rb
index <HASH>..<HASH> 100644
--- a/app/controllers/tuttle/ruby_controller.rb
+++ b/app/controllers/tuttle/ruby_controller.rb
@@ -7,7 +7,7 @@ module Tuttle
 
     def index
       # TODO: need better filter for sensitive values. this covers DB-style URLs with passwords, passwords, and keys
-      @filtered_env = ENV.to_hash.tap { |h| h.each { |k, _v| h[k] = '--FILTERED--' if /.*_(URL|PASSWORD|KEY|KEY_BASE)$/ =~ k } }
+      @filtered_env = ENV.to_hash.tap { |h| h.each { |k, _v| h[k] = '--FILTERED--' if /.*_(URL|PASSWORD|KEY|KEY_BASE|AUTHENTICATION)$/ =~ k } }
     end
 
     def tuning
filter *_AUTHENTICATION environment variables