diff --git a/library/ssl_tls13_server.c b/library/ssl_tls13_server.c
index b8201f0..3e6c038 100644
--- a/library/ssl_tls13_server.c
+++ b/library/ssl_tls13_server.c
@@ -467,6 +467,10 @@
     }
     memcpy(dst->resumption_key, src->resumption_key, src->resumption_key_len);
 
+#if defined(MBEDTLS_SSL_EARLY_DATA)
+    dst->max_early_data_size = src->max_early_data_size;
+#endif
+
     return 0;
 }
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */