diff --git a/udp.c b/udp.c
index eb7be78..36802fb 100644
--- a/udp.c
+++ b/udp.c
@@ -256,7 +256,7 @@ static int udp_send(struct transport *t, struct fdarray *fda,
 	cnt = sendto(fd, buf, len, 0, &addr->sa, sizeof(addr->sin));
 	if (cnt < 1) {
 		pr_err("sendto failed: %m");
-		return cnt;
+		return -errno;
 	}
 	/*
 	 * Get the time stamp right away.