diff --git a/fluents/dataset.py b/fluents/dataset.py
index 4bfe83e..d871b4e 100644
--- a/fluents/dataset.py
+++ b/fluents/dataset.py
@@ -392,7 +392,6 @@ class GraphDataset(Dataset):
         
         if isinstance(G, nx.DiGraph):
             G = nx.XDiGraph(G)
-            G = G.to_directed()
         elif isinstance(G, nx.Graph):
             G = nx.XGraph(G)