diff --git a/pytorch3d/csrc/pulsar/pytorch/renderer.h b/pytorch3d/csrc/pulsar/pytorch/renderer.h
index 2525ca3f3..33f9e24f5 100644
--- a/pytorch3d/csrc/pulsar/pytorch/renderer.h
+++ b/pytorch3d/csrc/pulsar/pytorch/renderer.h
@@ -44,8 +44,8 @@ struct Renderer {
       const float& gamma,
       const float& max_depth,
       float min_depth,
-      const c10::optional<torch::Tensor>& bg_col,
-      const c10::optional<torch::Tensor>& opacity,
+      const std::optional<torch::Tensor>& bg_col,
+      const std::optional<torch::Tensor>& opacity,
       const float& percent_allowed_difference,
       const uint& max_n_hits,
       const uint& mode);
@@ -75,8 +75,8 @@ struct Renderer {
       const float& gamma,
       const float& max_depth,
       float min_depth,
-      const c10::optional<torch::Tensor>& bg_col,
-      const c10::optional<torch::Tensor>& opacity,
+      const std::optional<torch::Tensor>& bg_col,
+      const std::optional<torch::Tensor>& opacity,
       const float& percent_allowed_difference,
       const uint& max_n_hits,
       const uint& mode,
@@ -115,8 +115,8 @@ struct Renderer {
       const float& gamma,
       const float& max_depth,
       float& min_depth,
-      const c10::optional<torch::Tensor>& bg_col,
-      const c10::optional<torch::Tensor>& opacity,
+      const std::optional<torch::Tensor>& bg_col,
+      const std::optional<torch::Tensor>& opacity,
       const float& percent_allowed_difference,
       const uint& max_n_hits,
       const uint& mode);