diff --git a/library/ssl_tls13_keys.h b/library/ssl_tls13_keys.h
index 7a41db1..45b0fdf 100644
--- a/library/ssl_tls13_keys.h
+++ b/library/ssl_tls13_keys.h
@@ -555,6 +555,6 @@
  * \returns    \c 0 on success.
  * \returns    A negative error code on failure.
  */
-int mbedtls_ssl_tls13_key_schedule_stage_early( mbedtls_ssl_context *ssl );
+int mbedtls_ssl_tls1_3_key_schedule_stage_early( mbedtls_ssl_context *ssl );
 
 #endif /* MBEDTLS_SSL_TLS1_3_KEYS_H */