diff --git a/lib/jekyll/site.rb b/lib/jekyll/site.rb
index 8cd86fff..fafa3dd6 100644
--- a/lib/jekyll/site.rb
+++ b/lib/jekyll/site.rb
@@ -458,10 +458,7 @@ module Jekyll
     def render_docs(payload)
       collections.each_value do |collection|
         collection.docs.each do |document|
-          if regenerator.regenerate?(document)
-            document.output = Jekyll::Renderer.new(self, document, payload).run
-            document.trigger_hooks(:post_render)
-          end
+          render_regenerated(document, payload)
         end
       end
     end
@@ -469,11 +466,15 @@ module Jekyll
     private
     def render_pages(payload)
       pages.flatten.each do |page|
-        if regenerator.regenerate?(page)
-          page.output = Jekyll::Renderer.new(self, page, payload).run
-          page.trigger_hooks(:post_render)
-        end
+        render_regenerated(page, payload)
       end
     end
+
+    private
+    def render_regenerated(document, payload)
+      return unless regenerator.regenerate?(document)
+      document.output = Jekyll::Renderer.new(self, document, payload).run
+      document.trigger_hooks(:post_render)
+    end
   end
 end