diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index ed93af0..850e6e0 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -1349,7 +1349,9 @@ static inline abi_long
host_to_target_cmsg(struct target_msghdr *target_msgh,
         target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
         target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(len));

-        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type
!= SCM_RIGHTS) {
+        if (cmsg->cmsg_level != TARGET_SOL_SOCKET ||
+                    (cmsg->cmsg_type != SCM_RIGHTS &&
+                                    cmsg->cmsg_type != SO_TIMESTAMP)) {
             gemu_log("Unsupported ancillary data: %d/%d\n",