diff --git a/app/presenters/post_presenter.rb b/app/presenters/post_presenter.rb
index 9130033d0..82a023a73 100644
--- a/app/presenters/post_presenter.rb
+++ b/app/presenters/post_presenter.rb
@@ -52,7 +52,7 @@ class PostPresenter < Presenter
 
     if options[:similarity]
       html << %{<p class="desc">}
-      html << "Similarity: " + options[:similarity].to_s
+      html << "Similarity: %#{options[:similarity].round}"
       html << %{</p>}
     end