diff --git a/tools/net/ynl/generated/handshake-user.c b/tools/net/ynl/generated/handshake-user.c
index 9ffe9fc58e51c..72eb1c52a8fc9 100644
--- a/tools/net/ynl/generated/handshake-user.c
+++ b/tools/net/ynl/generated/handshake-user.c
@@ -8,6 +8,7 @@
 #include "ynl.h"
 #include <linux/handshake.h>
 
+#include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 #include <libmnl/libmnl.h>