diff --git a/{{cookiecutter.repo_name}}/run.py b/{{cookiecutter.repo_name}}/run.py
index 3fa2188..25ca2e0 100644
--- a/{{cookiecutter.repo_name}}/run.py
+++ b/{{cookiecutter.repo_name}}/run.py
@@ -5,4 +5,4 @@ from {{cookiecutter.repo_name}} import main
 
 if __name__ == '__main__':
     port = int(os.environ.get('PORT', 5000))
-    main.app.run()
\ No newline at end of file
+    main.app.run(port=port)