diff --git a/lpips/__init__.py b/lpips/__init__.py
index 62b9a079..21d579d4 100755
--- a/lpips/__init__.py
+++ b/lpips/__init__.py
@@ -39,9 +39,9 @@
 
 #         return self.model.forward(target, pred)
 
-def normalize_tensor(in_feat,eps=1e-10):
-    norm_factor = torch.sqrt(torch.sum(in_feat**2,dim=1,keepdim=True))
-    return in_feat/(norm_factor+eps)
+def normalize_tensor(in_feat,eps=1e-8):
+    norm_factor = torch.sqrt(eps + torch.sum(in_feat**2,dim=1,keepdim=True))
+    return in_feat/norm_factor
 
 def l2(p0, p1, range=255.):
     return .5*np.mean((p0 / range - p1 / range)**2)