diff --git a/pairwise_comp_nn.py b/pairwise_comp_nn.py
index 6bfff5f..84e5299 100644
--- a/pairwise_comp_nn.py
+++ b/pairwise_comp_nn.py
@@ -29,7 +29,7 @@ class PairwiseComparator(nn.Module):
         )
 
     def forward(self, a, b):
-        # trying to force antisym here: h(a,b)=−h(b,a)
+        # trying to force antisym here: h(a,b)=-h(b,a)
         phi = self.head(self.embed(a-b))
         phi_neg = self.head(self.embed(b-a))
         logit = phi - phi_neg