diff --git a/node/impl/full/state.go b/node/impl/full/state.go
index 99e10ede4a2..29f21b863e8 100644
--- a/node/impl/full/state.go
+++ b/node/impl/full/state.go
@@ -686,7 +686,7 @@ func (a *StateAPI) StateSectorPreCommitInfo(ctx context.Context, maddr address.A
 	if err != nil {
 		return miner.SectorPreCommitOnChainInfo{}, err
 	} else if pci == nil {
-		return miner.SectorPreCommitOnChainInfo{}, nil
+		return nil, xerrors.Errorf("precommit info is not exists")
 	}
 
 	return *pci, err