diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c
index fb7821740e56cf01e93d08eb56800aae034b9307..4d755e4d56be811024fe9eb8d1c336a85d885618 100644
--- a/ssl/t1_lib.c
+++ b/ssl/t1_lib.c
@@ -1791,6 +1791,7 @@ int tls1_set_sigalgs_list(CERT *c, const char *str, int client)
     return tls1_set_sigalgs(c, sig.sigalgs, sig.sigalgcnt, client);
 }
 
+/* TODO(TLS1.3): Needs updating to allow setting of TLS1.3 sig algs */
 int tls1_set_sigalgs(CERT *c, const int *psig_nids, size_t salglen, int client)
 {
     unsigned int *sigalgs, *sptr;