diff -r 5fc32e4b2a8c -r 248d0b85cbda sources/main.cpp
--- a/sources/main.cpp	Wed Jan 27 19:01:37 2021 +0200
+++ b/sources/main.cpp	Wed Jan 27 19:27:23 2021 +0200
@@ -84,7 +84,7 @@
 			FD_ZERO (&fdset);
 			FD_SET (0, &fdset);
 
-			int fd = iface.getSession()->getSocket()->file_descriptor();
+			int fd = iface.getSession()->getSocket()->file_descriptor;
 			highest = zfc::max (highest, fd);
 			FD_SET (fd, &fdset);