diff --git a/imagenet/main.py b/imagenet/main.py
index 86abea3739..f0f196a1e5 100644
--- a/imagenet/main.py
+++ b/imagenet/main.py
@@ -112,7 +112,7 @@ def main():
         batch_size=args.batch_size, shuffle=False,
         num_workers=args.workers, pin_memory=True)
 
-    # define loss function (criterion) and pptimizer
+    # define loss function (criterion) and optimizer
     criterion = nn.CrossEntropyLoss().cuda()
 
     optimizer = torch.optim.SGD(model.parameters(), args.lr,