diff --git a/tools/render2d.py b/tools/render2d.py
index 7853a25..7d31f31 100644
--- a/tools/render2d.py
+++ b/tools/render2d.py
@@ -154,6 +154,7 @@ def create_projection_data(
         lidar_data = lidar_data.reindex(
             columns=range(horizontal_resolution), fill_value=0
         )
+        lidar_data = lidar_data.reindex(index=range(vertical_resolution), fill_value=0)
         lidar_data, output_horizontal_resolution = crop_lidar_data_to_roi(
             lidar_data, roi_angle_start, roi_angle_width, horizontal_resolution
         )