diff --git a/examples/ai-hub/prepare_inputs.py b/examples/ai-hub/prepare_inputs.py
index 5f4c6e6..72514c7 100755
--- a/examples/ai-hub/prepare_inputs.py
+++ b/examples/ai-hub/prepare_inputs.py
@@ -9,7 +9,6 @@ from pathlib import Path
 import numpy as np
 from PIL import Image
 
-
 IMAGE_EXTENSIONS = {".jpg", ".jpeg", ".png"}