diff --git a/app/controllers/contributions_controller.rb b/app/controllers/contributions_controller.rb
index bb5ca2841..01d7545ef 100644
--- a/app/controllers/contributions_controller.rb
+++ b/app/controllers/contributions_controller.rb
@@ -21,7 +21,7 @@ class ContributionsController < ApplicationController
         change_num = static.changes
         Rails.logger.info(uname)
         Rails.logger.info(change_num)
-        if @contribution_rate.include?(uname)
+        if @contribution_rate.has_key?(uname)
           @contribution_rate[uname] += change_num
         else
           @contribution_rate[uname] = change_num