diff --git a/lib/jekyll-archives/archive.rb b/lib/jekyll-archives/archive.rb
index 387efd8..5893609 100644
--- a/lib/jekyll-archives/archive.rb
+++ b/lib/jekyll-archives/archive.rb
@@ -33,7 +33,7 @@ def initialize(site, title, type, posts)
 
         # Generate slug if tag or category
         # (taken from jekyll/jekyll/features/support/env.rb)
-        @slug = Utils.slugify(title) if title.is_a? String
+        @slug = Utils.slugify(title, mode: @config["slug_mode"]) if title.is_a? String
 
         # Use ".html" for file extension and url for path
         @ext  = File.extname(relative_path)