diff --git a/lib/fat_zebra/request.rb b/lib/fat_zebra/request.rb
index 627e70a..130bc64 100644
--- a/lib/fat_zebra/request.rb
+++ b/lib/fat_zebra/request.rb
@@ -165,7 +165,7 @@ def uri_proxy
         if params[:proxy]
           URI(params[:proxy])
         else
-          OpenStruct.new
+          URI('')
         end
     end