// yes, he did! Disable pipelining and rewrite queue
                        if (Server->Pipeline == true)
                        {
-                          // FIXME: fake a warning message as we have no proper way of communicating here
-                          std::string out;
-                          strprintf(out, _("Automatically disabled %s due to incorrect response from server/proxy. (man 5 apt.conf)"), "Acquire::http::PipelineDepth");
-                          std::cerr << "W: " << out << std::endl;
+                          Warning(_("Automatically disabled %s due to incorrect response from server/proxy. (man 5 apt.conf)"), "Acquire::http::Pipeline-Depth");
                           Server->Pipeline = false;
                           Server->PipelineAllowed = false;
                           // we keep the PipelineDepth value so that the rest of the queue can be fixed up as well