diff --git a/_events/20180815-openspace.markdown b/_events/20180815-openspace.markdown
index 4c66467831a616cffa1a2bb489ca5448dfbe04d3..e360baada0765614cab969844176c41a9c42d05b 100644
--- a/_events/20180815-openspace.markdown
+++ b/_events/20180815-openspace.markdown
@@ -6,7 +6,7 @@ eventdate:   2018-08-15 19:00:00 +0200
 eventend:   2018-08-15 23:59:59 +0200
 #https://www.uuidgenerator.net/
 uid: 017ac132-7157-41df-845f-7a77fd6c56f3
-poster: https://wiki.chaotikum.org/_media/undefined:openspace2.jpg
+poster: https://wiki.chaotikum.org/_media/hackerspace:openspace.jpg
 contact: info@chaotikum.org
 locations:
  - AugenprÃ¼fraum