diff --git a/doc-src/lib/data_sources/syntax_highter.rb b/doc-src/lib/data_sources/syntax_highter.rb
index f0caee72..36eb8ff7 100644
--- a/doc-src/lib/data_sources/syntax_highter.rb
+++ b/doc-src/lib/data_sources/syntax_highter.rb
@@ -26,7 +26,7 @@ class SyntaxHighlighterFilter < Nanoc3::Filter
 
   def run(content, params={})
     doc = Nokogiri::HTML.fragment(content)
-    [:html, :css, :sass].each do |format|
+    [:html, :css, :sass, :scss].each do |format|
       doc.css("pre.source-code.#{format}, code.#{format}").each do |el|
         new_element = Nokogiri.make(highlight(el.inner_text, format))
         new_element.set_attribute("class", new_element.attribute("class").value+" "+el.attribute("class").value)