diff --git a/LOG.md b/LOG.md
index c4329d5..806a808 100644
--- a/LOG.md
+++ b/LOG.md
@@ -1,5 +1,8 @@
 # LOG
 
+## 240421
+1. Fixed typo of `circle_radius_range` in `generate_random_world_env_2d.py`. Adjusted `env_configs/random_2d.yml` to make the 2D configurations still the same as the previous setup, but with no typos.
+
 ## 240415
 1. Fixed `img_folder` bug in `visualize_data_samples_2d.py`.
 2. nirrt_star v1.0.0 is released.
diff --git a/env_configs/random_2d.yml b/env_configs/random_2d.yml
index 7c01951..4f8f1df 100644
--- a/env_configs/random_2d.yml
+++ b/env_configs/random_2d.yml
@@ -1,7 +1,7 @@
 env_height: 224
 env_width: 224
 rectangle_width_range: [16, 24]
-circle_radius_range: [8, 12]
+circle_radius_range: [16, 24]
 num_rectangles_range: [8, 12]
 num_circles_range: [8, 12]
 path_clearance: 3
diff --git a/generate_random_world_env_2d.py b/generate_random_world_env_2d.py
index 767a53f..ec04aba 100644
--- a/generate_random_world_env_2d.py
+++ b/generate_random_world_env_2d.py
@@ -71,7 +71,7 @@ def generate_astar_path(
 
 img_height, img_width = config['env_height'], config['env_width']
 rectangle_width_range = config['rectangle_width_range']
-circle_radius_range = config['rectangle_width_range']
+circle_radius_range = config['circle_radius_range']
 num_rectangles_range = config['num_rectangles_range']
 num_circles_range = config['num_circles_range']
 path_clearance = config['path_clearance']