diff --git a/machines/raven/services/labsync/default.nix b/machines/raven/services/labsync/default.nix
index 8a9250a..75f1980 100644
--- a/machines/raven/services/labsync/default.nix
+++ b/machines/raven/services/labsync/default.nix
@@ -5,7 +5,9 @@ let
   generator_port = 8695;
 in
 {
-  services.opentracker.enable = true;
+  # FIXME: opentracker is disabled, because it depends on libowfat-0.32,
+  #’which currently is marked as broken.
+  #services.opentracker.enable = true;
 
   services.nginx.virtualHosts."labsync.fablab-nea.de" = {
     addSSL = true;