diff --git a/parallelisation/02-1_ngt_points.py b/parallelisation/02-1_ngt_points.py
index ac8b35a..2650bd8 100644
--- a/parallelisation/02-1_ngt_points.py
+++ b/parallelisation/02-1_ngt_points.py
@@ -71,9 +71,9 @@ class NgtDocs:
 
     def __post_init__(
         self,
-        _lines: Iterable[NgtDoc],
+        _docs: Iterable[NgtDoc],
     ) -> None:
-        self.docs = tuple(_lines)
+        self.docs = tuple(_docs)
         self.total_lines = sum(doc.len for doc in self.docs)
 
     @property