diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 43d0562..afa0ac4 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -59,6 +59,7 @@ int __clone2(int (*fn)(void *), void *child_stack_base,
 #include <linux/icmp.h>
 #include <linux/icmpv6.h>
 #include <linux/errqueue.h>
+#include <linux/sockios.h>
 #include <linux/random.h>
 #include "qemu-common.h"
 #ifdef CONFIG_TIMERFD
 #include <sys/timerfd.h>