diff --git a/_events/20180829-openspace.markdown b/_events/20180829-openspace.markdown
index 91529082288bb8cc9b637357e90c683efb75de4c..6070bbead2aec79db2c3e6e4e02c5eba69d9a78b 100644
--- a/_events/20180829-openspace.markdown
+++ b/_events/20180829-openspace.markdown
@@ -6,7 +6,7 @@ eventend:   2018-08-29 23:59:59 +0200
 #https://www.uuidgenerator.net/
 uid: 65e43a5f-80a7-4fa6-9865-2bef8c68d3af
 contact: info@chaotikum.org
-poster: https://wiki.chaotikum.org/_media/undefined:openspace2.jpg
+poster: https://wiki.chaotikum.org/_media/hackerspace:openspace.jpg
 locations:
  - Augenprüfraum
  - Wartezimmer