diff --git a/egs/librispeech/ASR/pruned_transducer_stateless7/scaling.py b/egs/librispeech/ASR/pruned_transducer_stateless7/scaling.py
index 936a77b8c..52eef52da 100644
--- a/egs/librispeech/ASR/pruned_transducer_stateless7/scaling.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless7/scaling.py
@@ -1229,13 +1229,13 @@ class SwooshFunction(torch.autograd.Function):
         if x.dtype == torch.float16:
             x = x.to(torch.float32)
 
-        one = torch.tensor(1.0, dtype=x.dtype, device=x.device)
+        zero = torch.tensor(0.0, dtype=x.dtype, device=x.device)
 
         with torch.cuda.amp.autocast(enabled=False):
             with torch.enable_grad():
                 x = x.detach()
                 x.requires_grad = True
-                y = torch.logaddexp(one, x - 1.125)  - 0.08 * x - 0.3
+                y = torch.logaddexp(zero, x - 1.125)  - 0.08 * x - 0.3
 
                 if not requires_grad:
                     return y