diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 67fcebf..c26f68b 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -3411,7 +3411,10 @@
         ssl->session->id_len != 0 &&
         resume == 0 )
     {
-        if( ssl->conf->f_set_cache( ssl->conf->p_cache, ssl->session ) != 0 )
+        if( ssl->conf->f_set_cache( ssl->conf->p_cache,
+                                    ssl->session->id,
+                                    ssl->session->id_len,
+                                    ssl->session ) != 0 )
             MBEDTLS_SSL_DEBUG_MSG( 1, ( "cache did not store session" ) );
     }