diff --git a/lib/jekyll/site.rb b/lib/jekyll/site.rb
index 12a75ebf..085bfaea 100644
--- a/lib/jekyll/site.rb
+++ b/lib/jekyll/site.rb
@@ -104,7 +104,7 @@ module Jekyll
       end
     end
 
-    def plugin_allowed?(name)
+    def plugin_allowed?(gem_name)
       whitelist.include?(gem_name) || !self.safe
     end