diff --git a/chain/sync.go b/chain/sync.go
index 4fbb6925b..032992f12 100644
--- a/chain/sync.go
+++ b/chain/sync.go
@@ -66,8 +66,8 @@ func NewSyncer(cs *store.ChainStore, bsync *BlockSync, self peer.ID) (*Syncer, e
 		Genesis:   gent,
 		Bsync:     bsync,
 		peerHeads: make(map[peer.ID]*types.TipSet),
-		store: cs,
-		self:  self,
+		store:     cs,
+		self:      self,
 	}, nil
 }
 
diff --git a/extern/go-sectorbuilder b/extern/go-sectorbuilder
index 9b090e700..e75bc9b0a 160000
--- a/extern/go-sectorbuilder
+++ b/extern/go-sectorbuilder
@@ -1 +1 @@
-Subproject commit 9b090e700325b1c9a7d3b1556d447897ae039a58
+Subproject commit e75bc9b0aaeab4e1c8ea7eda42d63a39ae80728f