diff --git a/optimizer/adacoor.py b/optimizer/adacoor.py
index 9c295e7..f72f95e 100644
--- a/optimizer/adacoor.py
+++ b/optimizer/adacoor.py
@@ -32,6 +32,6 @@ class AdaCoor(torch.optim.Optimizer):
                     gt_hat = (epsilon * p.grad.data).to(dtype=torch.float32, device=p.device)
 
                     denom = vt.sqrt().add_(group['epsilon']).to(dtype=p.dtype, device=p.device)
-                    p.data.addcdiv_(gt_hat, denom, value=-1)
-                
+                    p.data.addcdiv_(gt_hat, denom, value=-1.0)
+
         return loss
\ No newline at end of file