diff --git a/include/linux/net.h b/include/linux/net.h
index 3a9b06d..39a23af 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -102,6 +102,9 @@
 
 /* Flags for socket, socketpair, paccept */
 #define SOCK_CLOEXEC	O_CLOEXEC
+#ifndef SOCK_NONBLOCK
+#define SOCK_NONBLOCK	O_NONBLOCK
+#endif
 
 #endif /* ARCH_HAS_SOCKET_TYPES */