diff --git a/lib/sord/parlour_plugin.rb b/lib/sord/parlour_plugin.rb
index b48e039..a0a38f5 100644
--- a/lib/sord/parlour_plugin.rb
+++ b/lib/sord/parlour_plugin.rb
@@ -80,6 +80,7 @@ def generate(root)
     end
 
     def add_custom_tags
+      return unless options[:tags]
       return if options[:tags].empty?
 
       options[:tags].each do |tag|