diff --git a/storage/pipeline/states_sealing.go b/storage/pipeline/states_sealing.go
index 6caa66494..8221b3968 100644
--- a/storage/pipeline/states_sealing.go
+++ b/storage/pipeline/states_sealing.go
@@ -584,6 +584,7 @@ func (m *Sealing) handleCommitting(ctx statemachine.Context, sector SectorInfo)
 
 		porepProof, err = m.sealer.SealCommit2(sector.sealingCtx(ctx.Context()), m.minerSector(sector.SectorType, sector.SectorNumber), c2in)
 		if err != nil {
+			log.Errorw("Commit2 error", "error", err)
 			return ctx.Send(SectorComputeProofFailed{xerrors.Errorf("computing seal proof failed(2): %w", err)})
 		}
 	} else {