diff --git a/go.mod b/go.mod
index 6f3b9fa55..7ffb4b20f 100644
--- a/go.mod
+++ b/go.mod
@@ -14,7 +14,7 @@ require (
 	github.com/dgraph-io/badger/v2 v2.0.1-rc1.0.20200709123515-8e896a7af361
 	github.com/dustin/go-humanize v1.0.0
 	github.com/glycerine/idem v0.0.0-20190127113923-7a8083893311
-	github.com/glycerine/lmdb-go v1.9.32
+	github.com/glycerine/lmdb-go v1.9.34
 	github.com/go-ole/go-ole v1.2.4 // indirect
 	github.com/gogo/protobuf v1.2.1
 	github.com/golang/protobuf v1.3.3
diff --git a/go.sum b/go.sum
index 231a844ad..dd7dbd434 100644
--- a/go.sum
+++ b/go.sum
@@ -66,6 +66,8 @@ github.com/glycerine/idem v0.0.0-20190127113923-7a8083893311 h1:AAXH0ZvYIHHqU06A
 github.com/glycerine/idem v0.0.0-20190127113923-7a8083893311/go.mod h1:B72P/ZM99sNiCmaQJflpmMAF5LsDzStpLdWzn0+Vr2Y=
 github.com/glycerine/lmdb-go v1.9.32 h1:thLnzCykFcmn2rACYnwpR4ovYauLNKaAuk+xj7YMbS0=
 github.com/glycerine/lmdb-go v1.9.32/go.mod h1:DrPeeTGooMg6B7cjNSP14perptTJzzdBy5YoosthrRs=
+github.com/glycerine/lmdb-go v1.9.34 h1:0lymJjpdelYnIMcNzsKROfIaApt99zhaHtjDJTHjGkE=
+github.com/glycerine/lmdb-go v1.9.34/go.mod h1:DrPeeTGooMg6B7cjNSP14perptTJzzdBy5YoosthrRs=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
diff --git a/txfactory.go b/txfactory.go
index 521a9f0b3..fe1769f43 100644
--- a/txfactory.go
+++ b/txfactory.go
@@ -582,30 +582,22 @@ func (f *TxFactory) diskUsageFromFilesystem() (map[string]int64, error) {
 	if err != nil {
 		return indexSizes, errors.Wrap(err, "expanding data directory")
 	}
-	dir, err := os.Open(dirName)
-	if err != nil {
-		return indexSizes, errors.Wrap(err, "opening data directory")
-	}
-	defer dir.Close()
 
-	files, err := dir.Readdir(-1)
-	if err != nil {
-		return indexSizes, errors.Wrap(err, "reading data directory")
-	}
+	idxs := f.holder.Indexes()
 
-	// Read size on disk for each index directory.
-	for _, file := range files {
-		if !file.IsDir() {
-			continue
-		}
-		if f.IsTxDatabasePath(file.Name()) {
-			continue
-		}
-		fullName := path.Join(dirName, file.Name())
-		indexSizes[file.Name()], err = directoryUsage(fullName)
+	for _, idx := range idxs {
+		index := idx.name
+		fullName := path.Join(dirName, index)
+		roaringAndMeta, err := directoryUsage(fullName)
 		if err != nil {
-			return indexSizes, errors.Wrap(err, "getting disk usage")
+			return indexSizes, errors.Wrap(err, "getting disk usage for roaring and meta")
 		}
+		fullName = index + ".index.txstores@@@"
+		rbfOrLmdb, err := directoryUsage(fullName)
+		if err != nil {
+			return indexSizes, errors.Wrap(err, "getting disk usage for backend")
+		}
+		indexSizes[index] = roaringAndMeta + rbfOrLmdb
 	}
 
 	return indexSizes, nil