diff --git a/app.py b/app.py
index 91b58f1..e4ffe30 100644
--- a/app.py
+++ b/app.py
@@ -5,6 +5,10 @@ from icalendar.cal import Calendar, Component
 
 app = Flask(__name__)
 
+PORT = int(os.environ.get('PORT', 5000))
+
+BASE_URL = os.environ.get('BASE_URL', None)
+
 EXCLUDED_COURSES = os.environ.get('COURSES', '').split(',')
 EXCLUDED_TYPES = os.environ.get('TYPES', '').split(',')
 
@@ -13,8 +17,6 @@ GROUP = os.environ.get('GROUP', '1')
 ALLOWED_YEARS = os.environ.get('ALLOWED_YEARS', '3,4,5').split(',')
 ALLOWED_GROUPS = os.environ.get('ALLOWED_GROUPS', '1,2,3').split(',')
 
-BASE_URL = os.environ.get('BASE_URL', None)
-
 
 @app.route("/")
 def hello():
@@ -92,5 +94,4 @@ def should_add(event):
         and course_type not in excluded_types
 
 if __name__ == "__main__":
-    port = int(os.environ.get('PORT', 5000))
-    app.run('0.0.0.0', port)
+    app.run('0.0.0.0', PORT)