diff --git a/pyinfra/server/server.py b/pyinfra/server/server.py
index 18ba11a..16945ee 100644
--- a/pyinfra/server/server.py
+++ b/pyinfra/server/server.py
@@ -71,9 +71,9 @@ def valid(result):
     return isinstance(result, dict) or result is Nothing
 
 
-def set_up_processing_server(package_processor):
+def set_up_processing_server(lazy_processor: LazyProcessor):
     app = Flask(__name__)
-    processor = LazyRestProcessor(package_processor, submit_suffix="submit", pickup_suffix="pickup")
+    processor = LazyRestProcessor(lazy_processor, submit_suffix="submit", pickup_suffix="pickup")
 
     @app.route("/ready", methods=["GET"])
     def ready():