diff --git a/stores/index.go b/stores/index.go
index fda973124..049e2dc20 100644
--- a/stores/index.go
+++ b/stores/index.go
@@ -384,8 +384,8 @@ func (i *Index) StorageBestAlloc(ctx context.Context, allocate SectorFileType, s
 	}
 
 	sort.Slice(candidates, func(i, j int) bool {
-		iw := big.Mul(big.NewInt(candidates[i].fsi.Available), big.NewInt(int64(candidates[i].info.Weight)))
-		jw := big.Mul(big.NewInt(candidates[j].fsi.Available), big.NewInt(int64(candidates[j].info.Weight)))
+		iw := big.Mul(big.NewInt(int64(candidates[i].fsi.Available)), big.NewInt(int64(candidates[i].info.Weight)))
+		jw := big.Mul(big.NewInt(int64(candidates[j].fsi.Available)), big.NewInt(int64(candidates[j].info.Weight)))
 
 		return iw.GreaterThan(jw)
 	})
diff --git a/stores/local.go b/stores/local.go
index 92b777307..26b7ccb75 100644
--- a/stores/local.go
+++ b/stores/local.go
@@ -13,7 +13,6 @@ import (
 
 	"golang.org/x/xerrors"
 
-	"github.com/filecoin-project/sector-storage/fsutil"
 	"github.com/filecoin-project/specs-actors/actors/abi"
 )