1 files changed, 1 insertions, 1 deletions

diff --git a/src/microhttpd/test_upgrade_large.c b/src/microhttpd/test_upgrade_large.c
index c1faca5c..4c54905d 100644
--- a/src/microhttpd/test_upgrade_large.c
+++ b/src/microhttpd/test_upgrade_large.c
@@ -1085,7 +1085,7 @@ run_mhd_select_loop (struct MHD_Daemon *daemon)
     FD_ZERO (&rs);
     FD_ZERO (&ws);
     FD_ZERO (&es);
-    max_fd = -1;
+    max_fd = MHD_INVALID_SOCKET;
     to = 1000;
 
     FD_SET (MHD_itc_r_fd_ (kicker), &rs);