diff --git a/src/plf/lab.py b/src/plf/lab.py
index 79339c2..efc9d82 100644
--- a/src/plf/lab.py
+++ b/src/plf/lab.py
@@ -1,5 +1,6 @@
 """
 create or use our lab
+from uuid import uuid4
 """
 
 from pathlib import Path