diff --git a/internal/backend/s3/s3.go b/internal/backend/s3/s3.go
index 044d39c5c..6fee1fd66 100644
--- a/internal/backend/s3/s3.go
+++ b/internal/backend/s3/s3.go
@@ -186,12 +186,12 @@ type fileInfo struct {
 	isDir   bool
 }
 
-func (fi fileInfo) Name() string       { return fi.name }    // base name of the file
-func (fi fileInfo) Size() int64        { return fi.size }    // length in bytes for regular files; system-dependent for others
-func (fi fileInfo) Mode() os.FileMode  { return fi.mode }    // file mode bits
-func (fi fileInfo) ModTime() time.Time { return fi.modTime } // modification time
-func (fi fileInfo) IsDir() bool        { return fi.isDir }   // abbreviation for Mode().IsDir()
-func (fi fileInfo) Sys() interface{}   { return nil }        // underlying data source (can return nil)
+func (fi *fileInfo) Name() string       { return fi.name }    // base name of the file
+func (fi *fileInfo) Size() int64        { return fi.size }    // length in bytes for regular files; system-dependent for others
+func (fi *fileInfo) Mode() os.FileMode  { return fi.mode }    // file mode bits
+func (fi *fileInfo) ModTime() time.Time { return fi.modTime } // modification time
+func (fi *fileInfo) IsDir() bool        { return fi.isDir }   // abbreviation for Mode().IsDir()
+func (fi *fileInfo) Sys() interface{}   { return nil }        // underlying data source (can return nil)
 
 // ReadDir returns the entries for a directory.
 func (be *Backend) ReadDir(ctx context.Context, dir string) (list []os.FileInfo, err error) {
@@ -225,7 +225,7 @@ func (be *Backend) ReadDir(ctx context.Context, dir string) (list []os.FileInfo,
 		if name == "" {
 			continue
 		}
-		entry := fileInfo{
+		entry := &fileInfo{
 			name:    name,
 			size:    obj.Size,
 			modTime: obj.LastModified,