diff --git a/netin/models/barabasi_albert_model.py b/netin/models/barabasi_albert_model.py
index 08e7cca..9d109e6 100644
--- a/netin/models/barabasi_albert_model.py
+++ b/netin/models/barabasi_albert_model.py
@@ -17,7 +17,7 @@ def __init__(
         super().__init__(
             *args, N=N, m=m,
             graph=graph, seed=seed, **kwargs)
-        self.pa = PreferentialAttachment(n=N, graph=self.graph)
+        self.pa = PreferentialAttachment(N=N, graph=self.graph)
 
     def compute_target_probabilities(self, source: int) -> np.ndarray:
         return\