diff --git a/group/description.go b/group/description.go
index bfc3fec..ad50ef4 100644
--- a/group/description.go
+++ b/group/description.go
@@ -441,15 +441,15 @@ func readDescription(name string, allowSubgroups bool) (*Description, error) {
 	if err != nil {
 		return nil, err
 	}
+	desc.FileName = fileName
+	desc.fileSize = fi.Size()
+	desc.modTime = fi.ModTime()
+
 	err = upgradeDescription(&desc)
 	if err != nil {
 		return nil, err
 	}
 
-	desc.FileName = fileName
-	desc.fileSize = fi.Size()
-	desc.modTime = fi.ModTime()
-
 	if isSubgroup {
 		if !desc.AutoSubgroups {
 			return nil, os.ErrNotExist