diff --git a/tools/filesystem/internal/fileblob/fileblob.go b/tools/filesystem/internal/fileblob/fileblob.go
index fa19e4c0..9a2d9503 100644
--- a/tools/filesystem/internal/fileblob/fileblob.go
+++ b/tools/filesystem/internal/fileblob/fileblob.go
@@ -385,6 +385,7 @@ func (drv *driver) NewRangeReader(ctx context.Context, key string, offset, lengt
 
 	if offset > 0 {
 		if _, err := f.Seek(offset, io.SeekStart); err != nil {
+			f.Close()
 			return nil, err
 		}
 	}