diff --git a/advanced_source/cpp_frontend.rst b/advanced_source/cpp_frontend.rst
index 968afa01b2..f54c59afe4 100644
--- a/advanced_source/cpp_frontend.rst
+++ b/advanced_source/cpp_frontend.rst
@@ -1207,9 +1207,9 @@ optimizers are created, but before the training loop:
 .. code-block:: cpp
 
   torch::optim::Adam generator_optimizer(
-      generator->parameters(), torch::optim::AdamOptions(2e-4).beta1(0.5));
+      generator->parameters(), torch::optim::AdamOptions(2e-4).betas(std::make_tuple(0.5, 0.5)));
   torch::optim::Adam discriminator_optimizer(
-      discriminator->parameters(), torch::optim::AdamOptions(2e-4).beta1(0.5));
+      discriminator->parameters(), torch::optim::AdamOptions(2e-4).betas(std::make_tuple(0.5, 0.5)));
 
   if (kRestoreFromCheckpoint) {
     torch::load(generator, "generator-checkpoint.pt");