diff --git a/src/gflownet/models/seq_transformer.py b/src/gflownet/models/seq_transformer.py
index 84e604d1..54557922 100644
--- a/src/gflownet/models/seq_transformer.py
+++ b/src/gflownet/models/seq_transformer.py
@@ -65,7 +65,6 @@ def logZ(self, cond_info: Optional[torch.Tensor]):
             return self._logZ(torch.ones((1, 1), device=self._logZ.weight.device))
         return self._logZ(cond_info)
 
-
     def forward(self, xs: SeqBatch, cond, batched=False):
         """Returns a GraphActionCategorical and a tensor of state predictions.