diff --git a/toponetx/classes/cell_complex.py b/toponetx/classes/cell_complex.py
index 7c2a8d7e..6176e7e4 100644
--- a/toponetx/classes/cell_complex.py
+++ b/toponetx/classes/cell_complex.py
@@ -1877,7 +1877,7 @@ def down_laplacian_matrix(
 
         Parameters
         ----------
-        rank : {0, 1}
+        rank : {1, 2}
             Rank of the down Laplacian matrix.
         signed : bool
             Whether to return the signed or unsigned down laplacian.