--- libteam-1.17/utils/teamnl.c
+++ libteam-1.17/utils/teamnl.c.new
@@ -23,6 +23,7 @@
 #include <string.h>
 #include <getopt.h>
 #include <errno.h>
+#include <sys/select.h>
 #include <sys/signalfd.h>
 #include <signal.h>
 #include <unistd.h>
