diff --git a/pytorch3d/renderer/cameras.py b/pytorch3d/renderer/cameras.py
index 1225381e..a840d54b 100644
--- a/pytorch3d/renderer/cameras.py
+++ b/pytorch3d/renderer/cameras.py
@@ -98,7 +98,7 @@ class CamerasBase(TensorProperties):
         """
         raise NotImplementedError()
 
-    def unproject_points(self):
+    def unproject_points(self, xy_depth: torch.Tensor, **kwargs):
         """
         Transform input points from camera coodinates (NDC or screen)
         to the world / camera coordinates.
diff --git a/pytorch3d/renderer/implicit/raysampling.py b/pytorch3d/renderer/implicit/raysampling.py
index c4e4139d..e868a18d 100644
--- a/pytorch3d/renderer/implicit/raysampling.py
+++ b/pytorch3d/renderer/implicit/raysampling.py
@@ -549,7 +549,7 @@ def _xy_to_ray_bundle(
     )
 
     # unproject the points
-    unprojected = cameras.unproject_points(to_unproject, from_ndc=True)  # pyre-ignore
+    unprojected = cameras.unproject_points(to_unproject, from_ndc=True)
 
     # split the two planes back
     rays_plane_1_world = unprojected[:, :n_rays_per_image]