diff --git a/libc/kernel/uapi/linux/udp.h b/libc/kernel/uapi/linux/udp.h
index a3e9e97..aa5287a 100644
--- a/libc/kernel/uapi/linux/udp.h
+++ b/libc/kernel/uapi/linux/udp.h
@@ -36,4 +36,6 @@
 #define UDP_ENCAP_ESPINUDP 2
 #define UDP_ENCAP_L2TPINUDP 3
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define UDP_ENCAP_GTP0 4
+#define UDP_ENCAP_GTP1U 5
 #endif