diff --git a/_data/attendees_denog16_onsite.json b/_data/attendees_denog16_onsite.json
index 21d08798..eda09963 100644
--- a/_data/attendees_denog16_onsite.json
+++ b/_data/attendees_denog16_onsite.json
@@ -821,6 +821,12 @@
     "irc": null,
     "asn": "208500"
   },
+  {
+    "name": "Marcel van Zwienen",
+    "company": "ZPE Systems",
+    "irc": null,
+    "asn": null
+  },
   {
     "name": "Marc Korthaus",
     "company": "Inter.link",