diff --git a/include/linux/if_tunnel.h b/include/linux/if_tunnel.h
index 1822d635be6b461124e659cfaa0861474a25e0bf..16b92d008bed842e141f77664e94446cbe652dcf 100644
--- a/include/linux/if_tunnel.h
+++ b/include/linux/if_tunnel.h
@@ -2,6 +2,7 @@
 #define _IF_TUNNEL_H_
 
 #include <linux/types.h>
+#include <asm/byteorder.h>
 
 #ifdef __KERNEL__
 #include <linux/ip.h>