diff --git a/README.md b/README.md
index b2c5eb89c..d07158ccf 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,11 @@ if backed gets suck or no camera are recognized after a crash do:
 ```
 sudo pkill -9 python3
 ```
-
+#### compiling:
+in order to compile the program for runtime run:
+```
+python3 -m nuitka --follow-imports Main.py
+```
 #### for the frontend
 1. sudo apt-get install nodejs npm
 2. cd chameleon-client 
diff --git a/backend/app/handlers/VisionHandler.py b/backend/app/handlers/VisionHandler.py
index 579dcb005..620995e2a 100644
--- a/backend/app/handlers/VisionHandler.py
+++ b/backend/app/handlers/VisionHandler.py
@@ -19,7 +19,7 @@ class VisionHandler():
 
     def find_contours(self, binary_img: numpy.ndarray):
 
-        contours, _ = cv2.findContours(binary_img, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_TC89_L1)
+        _,contours, _ = cv2.findContours(binary_img, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_TC89_L1)
         return contours
 
     class Filter_Contours: