diff --git a/app/models/page_collections/page_collection.rb b/app/models/page_collections/page_collection.rb
index 36e9e9a2..aa3d53a6 100644
--- a/app/models/page_collections/page_collection.rb
+++ b/app/models/page_collections/page_collection.rb
@@ -51,7 +51,7 @@ class PageCollection < ApplicationRecord
     end
 
     # If all else fails, fall back on default header
-    "card-headers/#{self.class.name.downcase.pluralize}.jpg"
+    ActionController::Base.helpers.asset_path("card-headers/#{self.class.name.downcase.pluralize}.jpg")
   end
 
   def first_public_image
diff --git a/app/models/page_types/content_page.rb b/app/models/page_types/content_page.rb
index c476d831..201b40f9 100644
--- a/app/models/page_types/content_page.rb
+++ b/app/models/page_types/content_page.rb
@@ -10,7 +10,7 @@ class ContentPage < ApplicationRecord
   self.authorizer_name = 'ContentPageAuthorizer'
 
   def random_image_including_private(format: :small)
-    ImageUpload.where(content_type: self.page_type, content_id: self.id).sample.try(:src, format) || "/assets/card-headers/#{self.page_type.downcase.pluralize}.jpg"
+    ImageUpload.where(content_type: self.page_type, content_id: self.id).sample.try(:src, format) || ActionController::Base.helpers.asset_path("card-headers/#{self.page_type.downcase.pluralize}.jpg")
   end
 
   def icon