--- src/shrpx_downstream_connection_pool.cc.orig	2019-11-15 08:19:29.000000000 -0600
+++ src/shrpx_downstream_connection_pool.cc	2020-04-06 13:23:44.000000000 -0500
@@ -54,7 +54,7 @@
   auto dconn = std::unique_ptr<DownstreamConnection>(*it);
   pool_.erase(it);
 
-  return dconn;
+  return std::move(dconn);
 }
 
 void DownstreamConnectionPool::remove_downstream_connection(