diff --git a/Dockerfile b/Dockerfile
index f13609b..dd21049 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,4 +9,4 @@ COPY . .
 RUN pip3 install -r requirements.txt
 EXPOSE 5000/udp
 EXPOSE 5000/tcp
-CMD ["gunicorn", "-b", "0.0.0.0:5000", "ayct_backend:app", "--timeout", "120"]
\ No newline at end of file
+CMD ["gunicorn", "-b", "0.0.0.0:$PORT", "ayct_backend:create_app()", "--timeout", "120"]
\ No newline at end of file
diff --git a/ayct_backend/__init__.py b/ayct_backend/__init__.py
index 9a22515..4dee880 100644
--- a/ayct_backend/__init__.py
+++ b/ayct_backend/__init__.py
@@ -27,5 +27,3 @@ def create_app():
         return "Hello world!"
 
     return app
-
-app = create_app()