diff --git a/miniupnpd/asyncsendto.c b/miniupnpd/asyncsendto.c
index 84f1c18..7abef30 100644
--- a/miniupnpd/asyncsendto.c
+++ b/miniupnpd/asyncsendto.c
@@ -6,6 +6,7 @@
  * in the LICENCE file provided within the distribution */
 
 #include <sys/types.h>
+#include <sys/select.h>
 #include <sys/socket.h>
 #include <sys/time.h>
 #include <sys/queue.h>
diff --git a/miniupnpd/upnpevents.c b/miniupnpd/upnpevents.c
index 25ea478..2e1b22f 100644
--- a/miniupnpd/upnpevents.c
+++ b/miniupnpd/upnpevents.c
@@ -1,4 +1,4 @@
-/* $Id: upnpevents.c,v 1.43 2019/05/20 19:59:21 nanard Exp $ */
+/* $Id: upnpevents.c,v 1.44 2019/09/24 11:47:06 nanard Exp $ */
 /* vim: tabstop=4 shiftwidth=4 noexpandtab
  * MiniUPnP project
  * http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
@@ -14,6 +14,7 @@
 #include <unistd.h>
 #include <time.h>
 #include <sys/types.h>
+#include <sys/select.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>