diff --git a/slack-mathbot/commands/calculate.rb b/slack-mathbot/commands/calculate.rb
index d39aaea..9261b23 100644
--- a/slack-mathbot/commands/calculate.rb
+++ b/slack-mathbot/commands/calculate.rb
@@ -5,7 +5,7 @@ module SlackMathbot
       command 'calculate'
 
       def self.call(client, data, match)
-          send_message client, data.channel, match
+          send_message client, data.channel, match[:expression]
         result = Dentaku::Calculator.new.evaluate(match[:expression]) if match.names.include?('expression')
         result = result.to_s if result
         if result && result.length > 0