diff --git a/lib/firehose/rack/consumer.rb b/lib/firehose/rack/consumer.rb
index d4f5b34..38ada71 100644
--- a/lib/firehose/rack/consumer.rb
+++ b/lib/firehose/rack/consumer.rb
@@ -78,11 +78,15 @@ def self.post_subscriptions(request)
         end
 
         subs
-      rescue JSON::ParserError
-        Firehose.logger.warn "Consumer.post_subscriptions: JSON::ParserError for request body: #{body.inspect}"
+      rescue JSON::ParserError => e
+        handle_parse_error(request, body, e)
         []
       end
 
+      def self.handle_parse_error(request, body, error)
+        Firehose.logger.warn "JSON::ParserError for request body: #{body.inspect}"
+      end
+
       # Let the client configure the consumer on initialization.
       def initialize
         yield self if block_given?