diff --git a/lib/cuba.rb b/lib/cuba.rb
index b4090fe3..e63b9f35 100644
--- a/lib/cuba.rb
+++ b/lib/cuba.rb
@@ -262,7 +262,7 @@ def extension(ext = "\\w+")
   #     # If not provided, username == "guest"
   #   end
   def param(key, default = nil)
-    value = req[key] || default
+    value = req.params[key] || default
 
     lambda { captures << value unless value.to_s.empty? }
   end