diff --git a/net/pooled_socket.cpp b/net/pooled_socket.cpp
index 1d3f3980..541c44d9 100644
--- a/net/pooled_socket.cpp
+++ b/net/pooled_socket.cpp
@@ -230,9 +230,11 @@ class TCPSocketPool : public ForwardSocketClient {
 
     bool release(const EndPoint& ep, ISocketStream* stream) {
         auto fd = stream->get_underlay_fd();
+        ERRNO err;
         if (!stream_alive(fd)) return false;
         auto node = new StreamListNode(ep, stream, fd, TTL_us);
         push_into_pool(node);
+        errno = err.no;
         return true;
     }