diff --git a/Rakefile b/Rakefile
index ed81f05d..fc2ea0ee 100644
--- a/Rakefile
+++ b/Rakefile
@@ -135,6 +135,10 @@ namespace :site do
 
   desc "Commit the local site to the gh-pages branch and publish to GitHub Pages"
   task :publish do
+    # Failsafe. Remove this once it has been done.
+    puts "Make sure to merge #583 into gh-pages before deploying."
+    exit(1)
+
     # Ensure the gh-pages dir exists so we can generate into it.
     puts "Checking for gh-pages dir..."
     unless File.exist?("./gh-pages")