diff --git a/demo.py b/demo.py
index 6c4b5ea..108f060 100644
--- a/demo.py
+++ b/demo.py
@@ -18,7 +18,7 @@
 import os.path as osp
 from lib.core.config import BASE_DATA_DIR
 from lib.models.smpl import SMPL, SMPL_MODEL_DIR
-##os.environ['PYOPENGL_PLATFORM'] = 'egl'
+os.environ['PYOPENGL_PLATFORM'] = 'egl'
 
 import cv2
 import time