diff --git a/openmc/lib/cell.py b/openmc/lib/cell.py
index 987de0899e..c69d1e2a40 100644
--- a/openmc/lib/cell.py
+++ b/openmc/lib/cell.py
@@ -69,7 +69,7 @@ class Cell(_FortranObjectWithID):
     uid : int or None
          Unique ID of the cell
     new : bool
-         When `index` is None, this arfument controls whether a new object is
+         When `index` is None, this argument controls whether a new object is
          created or a view to an existing object is returned.
     index : int
          Index in the `cells` array.