diff --git a/docs/solutions/holistic.md b/docs/solutions/holistic.md
index 6909096fe..f6117dbb5 100644
--- a/docs/solutions/holistic.md
+++ b/docs/solutions/holistic.md
@@ -261,10 +261,12 @@ Supported configuration options:
 
 ```python
 import cv2
+import numpy as np
 import mediapipe as mp
 mp_drawing = mp.solutions.drawing_utils
 mp_drawing_styles = mp.solutions.drawing_styles
 mp_holistic = mp.solutions.holistic
+BG_COLOR = (192, 192, 192) # gray
 
 # For static images:
 IMAGE_FILES = []