diff --git a/igibson/render/mesh_renderer/mesh_renderer_cpu.py b/igibson/render/mesh_renderer/mesh_renderer_cpu.py
index af7a056ed..1440d2294 100644
--- a/igibson/render/mesh_renderer/mesh_renderer_cpu.py
+++ b/igibson/render/mesh_renderer/mesh_renderer_cpu.py
@@ -1915,8 +1915,8 @@ def setup_lidar_param(self):
         xx = xx.flatten()
         yy = yy.flatten()
 
-        x_samples = (np.tan(xx) / np.cos(yy) * self.height // 2 + self.height // 2).astype(np.int)
-        y_samples = (np.tan(yy) * self.height // 2 + self.height // 2).astype(np.int)
+        x_samples = (np.tan(xx) / np.cos(yy) * self.height // 2 + self.height // 2).astype(np.int32)
+        y_samples = (np.tan(yy) * self.height // 2 + self.height // 2).astype(np.int32)
 
         self.x_samples = x_samples.flatten()
         self.y_samples = y_samples.flatten()