diff --git a/src/cmds/restic/cmd_rebuild_index.go b/src/cmds/restic/cmd_rebuild_index.go
index e3e82684a..8ac54d80b 100644
--- a/src/cmds/restic/cmd_rebuild_index.go
+++ b/src/cmds/restic/cmd_rebuild_index.go
@@ -33,17 +33,7 @@ func loadBlobsFromPacks(repo *repository.Repository) (packs map[backend.ID][]pac
 	defer close(done)
 
 	f := func(job worker.Job, done <-chan struct{}) (interface{}, error) {
-		id := job.Data.(backend.ID)
-
-		h := backend.Handle{Type: backend.Data, Name: id.String()}
-		rd := backend.NewReadSeeker(repo.Backend(), h)
-
-		unpacker, err := pack.NewUnpacker(repo.Key(), rd)
-		if err != nil {
-			return nil, err
-		}
-
-		return unpacker.Entries, nil
+		return repo.ListPack(job.Data.(backend.ID))
 	}
 
 	jobCh := make(chan worker.Job)
diff --git a/src/restic/repository/repository.go b/src/restic/repository/repository.go
index 6df3471ff..aa75d322e 100644
--- a/src/restic/repository/repository.go
+++ b/src/restic/repository/repository.go
@@ -518,6 +518,19 @@ func (r *Repository) List(t backend.Type, done <-chan struct{}) <-chan backend.I
 	return outCh
 }
 
+// ListPack returns the list of blobs saved in the pack id.
+func (r *Repository) ListPack(id backend.ID) ([]pack.Blob, error) {
+	h := backend.Handle{Type: backend.Data, Name: id.String()}
+	rd := backend.NewReadSeeker(r.Backend(), h)
+
+	unpacker, err := pack.NewUnpacker(r.Key(), rd)
+	if err != nil {
+		return nil, err
+	}
+
+	return unpacker.Entries, nil
+}
+
 // Delete calls backend.Delete() if implemented, and returns an error
 // otherwise.
 func (r *Repository) Delete() error {