diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index bdfdebc..196f69d 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -2775,7 +2775,7 @@
      * It may be already set to 1 by ssl_parse_session_ticket_ext(). */
     if( ssl->handshake->resume == 1 )
         return;
-    if( ssl->session_negotiate->id_len == 0 )
+    if( session->id_len == 0 )
         return;
     if( ssl->conf->f_get_cache == NULL )
         return;