diff --git a/src/storage/file_id.rs b/src/storage/file_id.rs
index 014ad3e6..6bbc4ea1 100644
--- a/src/storage/file_id.rs
+++ b/src/storage/file_id.rs
@@ -101,6 +101,13 @@ impl Into<String> for FileID {
 
 }
 
+impl Into<FileIDType> for FileID {
+
+    fn into(self) -> FileIDType {
+        self.id_type.clone()
+    }
+}
+
 impl From<String> for FileID {
 
     fn from(s: String) -> FileID {