diff --git a/library/ssl_tls13_keys.h b/library/ssl_tls13_keys.h
index 53dbe73..7ea0183 100644
--- a/library/ssl_tls13_keys.h
+++ b/library/ssl_tls13_keys.h
@@ -577,7 +577,7 @@
  *        with states Initial -> Early -> Handshake -> Application, and
  *        this function represents the Handshake -> Application transition.
  *
- *        In the handshake stage, mbedtls_ssl_tls1_3_generate_application_keys()
+ *        In the handshake stage, mbedtls_ssl_tls13_generate_application_keys()
  *        can be used to derive the handshake traffic keys.
  *
  * \param ssl  The SSL context to operate on. This must be in key schedule
@@ -601,7 +601,7 @@
  * \returns    \c 0 on success.
  * \returns    A negative error code on failure.
  */
-int mbedtls_ssl_tls1_3_generate_application_keys(
+int mbedtls_ssl_tls13_generate_application_keys(
     mbedtls_ssl_context* ssl, mbedtls_ssl_key_set *traffic_keys );
 
 /**