diff --git a/src/database/version_dao.rs b/src/database/version_dao.rs
index 55f43f6..f7d0f42 100644
--- a/src/database/version_dao.rs
+++ b/src/database/version_dao.rs
@@ -188,6 +188,15 @@ pub trait VersionDao: Sync + Send {
/// the original's rel_path (same library when possible).
fn original_path_of(&mut self, rel_path: &str) -> Result