diff --git a/include/uapi/linux/ip.h b/include/uapi/linux/ip.h
index d2f143393780..860bbf6bf29c 100644
--- a/include/uapi/linux/ip.h
+++ b/include/uapi/linux/ip.h
@@ -18,6 +18,7 @@
 #ifndef _UAPI_LINUX_IP_H
 #define _UAPI_LINUX_IP_H
 #include <linux/types.h>
+#include <linux/stddef.h>
 #include <asm/byteorder.h>
 
 #define IPTOS_TOS_MASK		0x1E
diff --git a/include/uapi/linux/ipv6.h b/include/uapi/linux/ipv6.h
index 766ab5c8ee65..d44d0483fd73 100644
--- a/include/uapi/linux/ipv6.h
+++ b/include/uapi/linux/ipv6.h
@@ -4,6 +4,7 @@
 
 #include <linux/libc-compat.h>
 #include <linux/types.h>
+#include <linux/stddef.h>
 #include <linux/in6.h>
 #include <asm/byteorder.h>