diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index fa2d88f..c4f8bd3 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -5205,9 +5205,9 @@
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
 #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-#define SSL_SERIALIZED_SESSION_KEEP_PEER_CRT 1
+#define SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT 1
 #else
-#define SSL_SERIALIZED_SESSION_KEEP_PEER_CRT 0
+#define SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT 0
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
 
 #if defined(MBEDTLS_SSL_CLI_C) && defined(MBEDTLS_SSL_SESSION_TICKETS)
@@ -5247,7 +5247,7 @@
 #define SSL_SERIALIZED_SESSION_CONFIG_TRUNC_HMAC_BIT    4
 #define SSL_SERIALIZED_SESSION_CONFIG_ETM_BIT           5
 #define SSL_SERIALIZED_SESSION_CONFIG_TICKET_BIT        6
-#define SSL_SERIALIZED_SESSION_CONFIG_KEEP_CRT_BIT      7
+#define SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT_BIT 7
 
 #define SSL_SERIALIZED_SESSION_CONFIG_BITFLAG                           \
     ((uint16_t) (                                                      \
@@ -5260,7 +5260,7 @@
              SSL_SERIALIZED_SESSION_CONFIG_TRUNC_HMAC_BIT) | \
          (SSL_SERIALIZED_SESSION_CONFIG_ETM << SSL_SERIALIZED_SESSION_CONFIG_ETM_BIT) | \
          (SSL_SERIALIZED_SESSION_CONFIG_TICKET << SSL_SERIALIZED_SESSION_CONFIG_TICKET_BIT) | \
-         (SSL_SERIALIZED_SESSION_KEEP_PEER_CRT << SSL_SERIALIZED_SESSION_CONFIG_KEEP_CRT_BIT)))
+         (SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT << SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT_BIT)))
 
 static const unsigned char ssl_serialized_session_header[] = {
     MBEDTLS_VERSION_MAJOR,