diff --git a/app/app.py b/app/app.py
old mode 100644
new mode 100755
index 44c9aaf..573bdde
--- a/app/app.py
+++ b/app/app.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 "Main Haldis script"
 import logging
 from logging.handlers import TimedRotatingFileHandler