diff --git a/storage/wdpost_run.go b/storage/wdpost_run.go
index 0fe7ea85179..51a0729aff0 100644
--- a/storage/wdpost_run.go
+++ b/storage/wdpost_run.go
@@ -659,6 +659,7 @@ func (s *WindowPoStScheduler) runPoStCycle(ctx context.Context, di dline.Info, t
 
 				if !bytes.Equal(checkRand, rand) {
 					log.Warnw("windowpost randomness changed", "old", rand, "new", checkRand, "ts-height", ts.Height(), "challenge-height", di.Challenge, "tsk", ts.Key())
+					rand = checkRand
 					continue
 				}