diff --git a/bot.rb b/bot.rb
index 5f69fb0..16b4d56 100644
--- a/bot.rb
+++ b/bot.rb
@@ -64,7 +64,7 @@ bot.message(in: Integer(ENV['SENTENCE_CHANNEL'])) do |event|
     if $sentence.empty?
       next
     end
-    event << "Congratulations, your sentence is: #{$sentence.values.join(" ").}"
+    event << "Congratulations, your sentence is: #{$sentence.values.join(" ")}."
     $sentence.clear
     next
   end