diff --git a/ssl/t1_enc.c b/ssl/t1_enc.c
index 743c359..7bbf446 100644
--- a/ssl/t1_enc.c
+++ b/ssl/t1_enc.c
@@ -495,9 +495,8 @@
 	unsigned key_len, iv_len, mac_secret_len;
 	const unsigned char *key_data;
 
-	/* Reset sequence number to zero.
-	 * TODO(davidben): Is this redundant with dtls1_reset_seq_numbers? */
-	if (SSL_IS_DTLS(s))
+	/* Reset sequence number to zero. */
+	if (!SSL_IS_DTLS(s))
 		memset(is_read ? s->s3->read_sequence : s->s3->write_sequence, 0, 8);
 
 	/* key_arg is used for SSLv2. We don't need it for TLS. */