diff --git a/prototorch/core/losses.py b/prototorch/core/losses.py
index c92424d..873538a 100644
--- a/prototorch/core/losses.py
+++ b/prototorch/core/losses.py
@@ -120,8 +120,8 @@ class GLVQLoss(torch.nn.Module):
         self.add_dp = add_dp
 
     def forward(self, outputs, targets, plabels):
-        # mu = glvq_loss(outputs, targets, prototype_labels=plabels)
-        dp, dm = _get_dp_dm(distances, target_labels, prototype_labels)
+        # mu = glvq_loss(outputs, targets, plabels)
+        dp, dm = _get_dp_dm(outputs, targets, plabels)
         mu = (dp - dm) / (dp + dm)
         if self.add_dp:
             mu = mu + dp