diff --git a/app.py b/app.py
index 0ffd884..4768caa 100644
--- a/app.py
+++ b/app.py
@@ -1,5 +1,6 @@
 from flask import Flask, render_template, url_for, request, redirect, Response, abort, session
 from flask_sqlalchemy import SQLAlchemy
+from werkzeug.middleware.proxy_fix import ProxyFix
 from datetime import datetime
 import magic
 import random
@@ -30,6 +31,7 @@ rechenreihen = {
 }
 
 app = Flask(__name__)
+app.wsgi_app = ProxyFix(app.wsgi_app, x_proto=1, x_host=1)
 app.secret_key = 'eng5iikeiwah3lae4idoo0woh4eiy6Th'
 
 @app.route('/', methods = ['GET', 'POST'])