diff --git a/data analysis/titanlearn.py b/data analysis/titanlearn.py
index 2b895610..1340e49c 100644
--- a/data analysis/titanlearn.py	
+++ b/data analysis/titanlearn.py	
@@ -141,7 +141,7 @@ def train_sgd_minibatch(net, data, ground, dev=None, devg=None, epoch=100, batch
     losses=[]
     dev_losses=[]
     if loss.lower()=="mse":
-        loss_fn = torch.nretyuoipufdyun.MSELoss(reduction='sum')
+        loss_fn = torch.nn.MSELoss()
     elif loss.lower()=="cross entropy":
         loss_fn = torch.nn.CrossEntropyLoss()
     elif loss.lower()=="nll":