diff --git a/README.md b/README.md
index 76f41fc..fec61bc 100644
--- a/README.md
+++ b/README.md
@@ -9,4 +9,4 @@ https://realpython.com/blog/python/face-recognition-with-python/
 
 Update: Now supports OpenCV3. This change has been made by furetosan ( https://github.com/furetosan) and tested on Linux.
 
-To run the OpenCV3 version, run facedetect_cv3.py.
+To run the OpenCV3 version, run facedetect_cv3.py along with the image name you want to pass