diff --git a/library/ssl_tls13_keys.c b/library/ssl_tls13_keys.c
index b92f12e..2e34ee8 100644
--- a/library/ssl_tls13_keys.c
+++ b/library/ssl_tls13_keys.c
@@ -1238,7 +1238,7 @@
     ret = mbedtls_ssl_tls13_populate_transform(
         transform_earlydata,
         ssl->conf->endpoint,
-        ssl->session_negotiate->ciphersuite,
+        handshake->ciphersuite_info->id,
         &traffic_keys,
         ssl);
     if (ret != 0) {
@@ -1699,7 +1699,7 @@
     ret = mbedtls_ssl_tls13_populate_transform(
         transform_handshake,
         ssl->conf->endpoint,
-        ssl->session_negotiate->ciphersuite,
+        handshake->ciphersuite_info->id,
         &traffic_keys,
         ssl);
     if (ret != 0) {
@@ -1789,7 +1789,7 @@
     ret = mbedtls_ssl_tls13_populate_transform(
         transform_application,
         ssl->conf->endpoint,
-        ssl->session_negotiate->ciphersuite,
+        ssl->handshake->ciphersuite_info->id,
         &traffic_keys,
         ssl);
     if (ret != 0) {