diff --git a/app/views/posts/show.haml b/app/views/posts/show.haml
index b32b989..70d1321 100644
--- a/app/views/posts/show.haml
+++ b/app/views/posts/show.haml
@@ -46,7 +46,7 @@
                   %table
                     %thead
                       %tr
-                        - data.first.keys.each do |k|
+                        - !data.empty? && data.first.keys.each do |k|
                           %th= k.humanize
                     %tbody
                       - data.each do |r|