diff --git a/samples/python2/mouse_and_match.py b/samples/python2/mouse_and_match.py
index f44003385..7937140e3 100755
--- a/samples/python2/mouse_and_match.py
+++ b/samples/python2/mouse_and_match.py
@@ -9,6 +9,7 @@ Demonstrate using a mouse to interact with an image:
  ESC to exit
 '''
 import numpy as np
+import cv2
 
 # built-in modules
 import os