diff --git a/libc/kernel/uapi/linux/errqueue.h b/libc/kernel/uapi/linux/errqueue.h
index 196189b..f4a244f 100644
--- a/libc/kernel/uapi/linux/errqueue.h
+++ b/libc/kernel/uapi/linux/errqueue.h
@@ -34,9 +34,12 @@
 #define SO_EE_ORIGIN_ICMP6 3
 #define SO_EE_ORIGIN_TXSTATUS 4
 #define SO_EE_ORIGIN_ZEROCOPY 5
+#define SO_EE_ORIGIN_TXTIME 6
 #define SO_EE_ORIGIN_TIMESTAMPING SO_EE_ORIGIN_TXSTATUS
 #define SO_EE_OFFENDER(ee) ((struct sockaddr *) ((ee) + 1))
 #define SO_EE_CODE_ZEROCOPY_COPIED 1
+#define SO_EE_CODE_TXTIME_INVALID_PARAM 1
+#define SO_EE_CODE_TXTIME_MISSED 2
 struct scm_timestamping {
   struct timespec ts[3];
 };