diff --git a/bitsandbytes/optim/lion.py b/bitsandbytes/optim/lion.py
index c267af7..2551b68 100644
--- a/bitsandbytes/optim/lion.py
+++ b/bitsandbytes/optim/lion.py
@@ -22,7 +22,7 @@ class Lion(Optimizer1State):
             "lion",
             params,
             lr,
-            (beta1, beta2),
+            betas,
             0.,
             weight_decay,
             optim_bits,
@@ -49,7 +49,7 @@ class Lion8bit(Optimizer1State):
             "lion",
             params,
             lr,
-            (beta1, beta2),
+            betas,
             0.,
             weight_decay,
             8,