--- a/lib/url.c
+++ b/lib/url.c
@@ -965,6 +965,7 @@
       /* The protocol has a special method for checking the state of the
          connection. Use it to check if the connection is dead. */
       unsigned int state;
+      conn->data = data; /* use this transfer for now */
       state = conn->handler->connection_check(conn, CONNCHECK_ISDEAD);
       dead = (state & CONNRESULT_DEAD);
     }