diff --git a/web-to-db.py b/web-to-db.py
index 3867f4a..902e5b0 100644
--- a/web-to-db.py
+++ b/web-to-db.py
@@ -34,7 +34,7 @@ class testHTTPServer_RequestHandler(BaseHTTPRequestHandler):
         # And insert into the db
         self.insert_xml(post_data)
 
-    def insert_xml():
+    def insert_xml(self, data):
         try:
             conn = psycopg2.connect("dbname=hackzurich")
         except Exception as e: