diff --git a/cookbooks/web/recipes/rails.rb b/cookbooks/web/recipes/rails.rb
index 5d7715be7..921ac3c6b 100644
--- a/cookbooks/web/recipes/rails.rb
+++ b/cookbooks/web/recipes/rails.rb
@@ -148,6 +148,7 @@
   signup_ip_max_burst 48
   signup_email_per_day 1
   signup_email_max_burst 2
+  # Requests to modify the imagery blacklist should come from the DWG only
   imagery_blacklist [
     # Current Google imagery URLs have google or googleapis in the domain
     ".*\\.google(apis)?\\..*/.*",