diff --git a/lib/banzai/pipeline/description_pipeline.rb b/lib/banzai/pipeline/description_pipeline.rb
index f2395867658..042fb2e6e14 100644
--- a/lib/banzai/pipeline/description_pipeline.rb
+++ b/lib/banzai/pipeline/description_pipeline.rb
@@ -1,23 +1,16 @@
 module Banzai
   module Pipeline
     class DescriptionPipeline < FullPipeline
+      WHITELIST = Banzai::Filter::SanitizationFilter::LIMITED.deep_dup.merge(
+        elements: Banzai::Filter::SanitizationFilter::LIMITED[:elements] - %w(pre code img ol ul li)
+      )
+
       def self.transform_context(context)
         super(context).merge(
           # SanitizationFilter
-          whitelist: whitelist
+          whitelist: WHITELIST
         )
       end
-
-      private
-
-      def self.whitelist
-        # Descriptions are more heavily sanitized, allowing only a few elements.
-        # See http://git.io/vkuAN
-        whitelist = Banzai::Filter::SanitizationFilter::LIMITED
-        whitelist[:elements] -= %w(pre code img ol ul li)
-
-        whitelist
-      end
     end
   end
 end