diff --git a/lib/nghttp2_session.c b/lib/nghttp2_session.c
index 02fe062c..9992c45a 100644
--- a/lib/nghttp2_session.c
+++ b/lib/nghttp2_session.c
@@ -2246,7 +2246,9 @@ static void session_outbound_item_schedule(nghttp2_session *session,
                                            int32_t weight) {
   size_t delta = item->frame.hd.length * NGHTTP2_MAX_WEIGHT / weight;
 
-  session->last_cycle = nghttp2_max(session->last_cycle, item->cycle);
+  assert(session->last_cycle <= item->cycle);
+
+  session->last_cycle = item->cycle;
   item->cycle = session->last_cycle + delta;
 }