diff --git a/src/small/app.py b/src/small/app.py
index 6debce5..a5300e9 100644
--- a/src/small/app.py
+++ b/src/small/app.py
@@ -20,7 +20,7 @@ def main():
         app.debug = True
 
     if int(environ.get("PROXY_FIX", 0)):
-        app.wsgi_app = ProxyFix(app.wsgi_app)
+        app.wsgi_app = ProxyFix(app.wsgi_app, x_for=1, x_proto=1, x_host=1, x_port=1)
 
     app.run(port=port)