diff --git a/libmpdemux/demux_nut.c b/libmpdemux/demux_nut.c
index b275fd2b5f..3f60641d1b 100644
--- a/libmpdemux/demux_nut.c
+++ b/libmpdemux/demux_nut.c
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <stdlib.h>
 
 #include "config.h"
 #include "mp_msg.h"